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HEPA filtration is more than a buzzword—it’s a benchmark for critical environments that can’t afford compromised air. Used across industries where air purity is non-negotiable, certified HEPA (High-Efficiency Particulate Air) filters are the proven choice for removing harmful particulate matter that threatens both human health and sensitive processes. Industries That Rely on True HEPA HEPA, the gold standard of filtration, is widely used in sectors that demand the cleanest air possible, such as: Semiconductor manufacturing Nuclear containment Biotech and pharmaceutical labs Microchip and electronics production Hospital operating rooms and isolation wards Aerospace cleanrooms High-containment BSL laboratories Defense and military applications Food and beverage clean processing If these industries trust HEPA to protect critical operations and human health, it raises an important question: why wouldn’t your facility? What Makes a HEPA Filter Legit? Not all “HEPA” claims are created equal. True, certified HEPA filters must meet strict performance standards—specifically capturing 99.97% of particles at 0.3 microns or better (some certified filters even test to 99.99%). But how do you verify that the filter in your system is performing as it should? Here’s what you should ask any air purifier manufacturer or vendor: Is the filter certified to IEST-RP-CC001? Do your filters meet or exceed ASHRAE Standard 52.2 testing? Do you have ISO 29463 or EN 1822 classification data? Can you provide independent lab results or certification documentation? What DOE (Department of Energy) or cleanroom-grade standards do you meet? Without answers to these, you may be buying a label—not a real solution. The Danger of PM2.5: Invisible, But Potent One of the biggest threats to indoor air quality today is fine particulate matter smaller than 2.5 microns (PM2.5). These particles can penetrate deep into the lungs, enter the bloodstream, and contribute to long-term health problems such as respiratory diseases, cardiovascular issues, cognitive decline, and even cancer. Because they’re invisible to the naked eye, PM2.5 often goes undetected without proper filtration in place and can be found around you in: Vehicle exhaust (diesel and gasoline engines) Industrial emissions (factories, power plants, refineries) Pollen Combustion byproducts (from burning wood, coal, oil, or natural gas) Cigarette smoke and secondhand smoke Wildfire smoke Cooking fumes (especially frying, grilling, and burning oils) Construction dust (fine dust from concrete, drywall, etc.) Agricultural burning and field dust Mold spores Biological fragments (skin flakes, bacteria, organic debris) Brake and tire wear particles (from roadways and traffic) Indoor dust (resuspended fine particles from surfaces or carpets) These microscopic pollutants are all around us—indoors and out—and their ability to bypass the body’s natural defenses makes them especially dangerous. Certified HEPA filters actively capture PM2.5 and even smaller particles with verified efficiency, unlike standard filters, making them one of the most effective tools for protecting indoor air quality. In environments where health, safety, and compliance matter, HEPA isn’t just a filter; it’s peace of mind. HEPA and IAQP The Indoor Air Quality Procedure (IAQP) provides building designers with flexibility to reduce outdoor air ventilation by demonstrating control of indoor contaminants. However, success depends on the effectiveness of the filtration system. While HEPA filtration isn’t explicitly required under IAQP, it’s hard to justify using anything less when PM2.5, one of the most dangerous and pervasive airborne pollutants, is listed in ASHRAE’s Table 6-5. HEPA filters, proven to capture 99.97% or more of particles down to 0.3 microns, offer unmatched protection against PM2.5. Beyond health, better filtration means you can confidently lower outdoor air intake, which reduces HVAC equipment sizing, capital costs, and long-term energy consumption. In short, using HEPA with IAQP isn’t just a win for indoor air quality, it’s a strategic move for cutting costs and future-proofing your building. AirBox: Built on 30+ Years of Cleanroom Expertise At AirBox, HEPA filtration isn’t a new feature, it’s the foundation. With over 30 years of experience in cleanroom design and certification, we understand what proven performance means in environments where there’s no room for error. That’s why every AirBox purifier, ranging from 500 CFM to 9,000 CFM, is equipped with certified HEPA and Advanced Molecular Adsorbent filtration for complete protection. We don’t just say “HEPA”, we prove it. With our Advanced Operating System (AOS), filter life tracking, and IAQP compliance support, we make it easy to bring cleanroom-level air quality into commercial buildings, schools, healthcare facilities, and more ...

As building codes evolve and indoor air quality (IAQ) becomes a top priority, many design teams are rethinking their approach to energy-efficient ventilation. For years, Demand Control Ventilation (DCV) has been the standard method for reducing energy consumption in commercial facilities by adjusting ventilation rates based on occupancy levels. However, an increasing number of engineers and owners are looking to the Indoor Air Quality Procedure (IAQP), a performance-based alternative that ASHRAE Standard 62.1-2022 defines and outlines as a smarter, more flexible solution. The reason? IAQP doesn’t just save energy; it can significantly reduce HVAC system design size, improve indoor air quality, and simplify long-term operation and maintenance. Limitations of Demand Control Ventilation While DCV can reduce outdoor air intake during periods of low occupancy with CO₂ monitoring, it presents several engineering and operational drawbacks: No reduction in equipment sizing: Despite reduced outdoor airflows during operation, engineers must still size systems according to the Ventilation Rate Procedure (VRP) for full design occupancy. This results in no capital cost savings on air handling units (AHUs), ductwork, cooling capacity, etc. Sensor reliability challenges: DCV depends on CO₂ sensors that are prone to drift, require frequent calibration, and can be difficult to manage across distributed systems. Inaccurate readings can lead to over-ventilation (wasting energy) or under-ventilation (risking occupant health). Increased compliance burden: ASHRAE has introduced stricter sensor calibration and accuracy requirements in recent revisions to Standard 62.1, increasing both the initial and ongoing cost and complexity for facility managers and OEMs. Limited pollutant control: DCV is occupancy-based and does not address airborne contaminants such as VOCs, PM2.5, ozone, or formaldehyde—many of which are known carcinogens or respiratory hazards. A space can meet CO₂ targets while still failing to ensure healthy indoor air. IAQP: A Smarter Performance-Based Alternative Unlike DCV, IAQP is a performance-based design method that enables reduced outdoor air rates if contaminant levels can be controlled using validated technologies such as high-efficiency filtration and air cleaning systems. This approach allows engineers to balance energy efficiency with real indoor air quality improvements. Key advantages include: Smaller HVAC systems and reduced first costs: By designing for lower ventilation rates, IAQP often requires smaller AHUs, DOAS, reduced duct runs, fewer or smaller ERVs, and more, significantly cutting first costs on new construction and depending on the air cleaning equipment, often times seeing net savings on new construction. Targeted removal of harmful pollutants: IAQP outlines harmful pollutants in ASHRAE Table 6-5, many of which are carcinogens or linked to chronic disease. By actively mitigating these contaminants with proven removal efficiency tested air cleaners, building owners gain increased occupant health and safety and a defensible strategy to reduce liability related to indoor air complaints, wellness claims, or future regulatory action. Verified performance through testing: Technicians measure and verify indoor air quality through contaminant testing, using real performance data rather than assumptions based on occupancy alone. Post-implementation Verification Testing takes out the guesswork of IAQP equipment performance. AirBox + IAQP: Integrated Solutions for Compliance and Performance AirBox delivers a turnkey solution for implementing IAQP effectively by combining engineering and design support, compliant air purification systems, comprehensive IAQ Verification Testing, compliance documents, and advanced system control with the AirBox Advanced Operating System (AOS). Our air cleaners are equipped with Certified HEPA filtration and Advanced Molecular Adsorbent media, targeting the full range of contaminants listed in ASHRAE Table 6-5 such as particulate matter and harmful gases like formaldehyde, ozone, and VOCs. This comprehensive filtration not only supports IAQP compliance but also qualifies for dual credit under ASHRAE Standard 241, helping facilities meet both indoor air quality and infection control goals. We manufactured AirBox systems in our EPA-registered facility in the USA. Our units range from 500 to 9,000 CFM and integrate seamlessly into both new construction and retrofit projects. By combining IAQP with proven solutions like AirBox, owners and engineers can: Realize CAPEX savings by downsizing HVAC equipment Achieve measurable energy savings for ongoing cost reduction Comply with evolving codes and regulations to stay ahead of industry standards Ensure verified, high-quality indoor air that prioritizes occupant health Access dual-credit pathways under ASHRAE Standard 241, supporting both infection control and IAQ objectives As expectations around indoor air quality rise, IAQP offers a future-forward path that aligns performance, compliance, and occupant health. With the right strategy and solutions, achieving better air doesn’t have to come at the cost of efficiency ...

Maintaining optimal air quality is paramount in laboratory environments. Contaminants like particulate matter, volatile organic compounds (VOCs), and pathogens can compromise research accuracy, equipment integrity, and, most importantly, the health and safety of lab personnel. While HVAC systems are a crucial component of lab ventilation, sometimes they are insufficient to achieve the required Air Changes per Hour (ACH) necessary for specific applications or to address localized air quality concerns. This is where introducing compliant air purification can make a significant difference.   Understanding the Importance of Air Changes per Hour Air changes per hour refers to the number of times the total volume of air in a room is replaced with fresh, filtered air within one hour. Consequently, higher ACH generally translates to improved indoor air quality and reduced concentration of airborne contaminants. The recommended ACH varies depending on the type of laboratory and the specific hazards present. Factors influencing the required ACH include: Type of Research: Experiments involving infectious agents, hazardous chemicals, or sensitive materials require higher ACH. Equipment Used: Equipment that generates fumes, particles, or heat can necessitate increased ventilation. Occupancy Levels: Higher occupancy rates increase bioeffluents and airborne pathogens, all of which affect ventilation demand. Regulatory Guidelines: Organizations such as ASHRAE provide guidance on ventilation requirements for specific laboratory settings.   Limitations of Existing HVAC Systems While HVAC systems play a critical role in lab ventilation, they may face limitations in achieving the desired ACH: System Capacity: Older or undersized HVAC systems may lack the capacity to provide adequate airflow for the entire lab. Distribution Issues: Air distribution problems can lead to uneven ventilation, with some areas receiving insufficient airflow. Cost of Upgrades: Upgrading the existing HVAC system can be a significant investment. Disruptions During Renovation: Major HVAC upgrades often require lab downtime and potential disruptions to research activities.   How AirBox Can Enhance ACH and Indoor Air Quality AirBox High-Volume Purifiers (HVPs) offer a flexible and cost-effective solution to supplement existing HVAC systems and improve indoor air quality in labs. Here's how they contribute: Increased Localized ACH: AirBox HVPs can be strategically placed in areas where higher ACH is required, such as around fume hoods, biosafety cabinets, or in areas with high concentrations of particulate matter. Effective Filtration: Equipped with Certified HEPA and Advanced Molecular Adsorbent filtration, AirBox HVPs capture 99.99% of airborne particles, as well as Volatile Organic Compounds (VOCs) and other harmful chemical contaminants. Minimized Maintenance: By utilizing the AirBox Advanced Operating System (AOS), facilities can integrate with their Building Management Systems (BMS) to manage, adjust, schedule, and monitor their HVPs. Additionally, the AirBox AOS allows live IAQ and filter-life tracking with integrated sensors on board. Emergency Response: AirBox HVPs can quickly address indoor air quality risk from contamination events like viral outbreaks, wildfire smoke, and more through an easy switch to ASHRAE Standard 241-2023's Infection Risk Management Mode (IRMM) to increase clean airflow. Reduced Strain on HVAC: By filtering air locally, AirBox purifiers alleviate some of the burden on the HVAC system, potentially extending its lifespan.   Conclusion: A Smarter Path to Safer, More Compliant Labs In laboratory environments where precision, safety, and regulatory compliance are non-negotiable, maintaining high indoor air quality is critical. Consequently, achieving the appropriate Air Changes per Hour (ACH) is key. While traditional HVAC systems form the backbone of lab ventilation, they often fall short when it comes to localized needs, rapid response to contaminants, or cost-effective scalability. AirBox High-Volume Purifiers bridge that gap. With certified filtration, intelligent integration, and advanced operational capabilities, AirBox solutions not only help labs meet or exceed ACH requirements, but do so without costly HVAC upgrades or disruptive renovations. Whether supplementing existing systems, supporting emergency IAQ response, or optimizing performance in high-demand zones, AirBox purifiers deliver the flexibility and control modern laboratories require. In short, boosting lab ACH isn’t just about compliance—it’s about creating a cleaner, safer, and more efficient research environment. And with AirBox, you don’t have to compromise ...

In the wake of the pandemic and amid rising awareness about the importance of indoor air quality (IAQ), school districts across the country are reassessing how they ventilate and purify the air in classrooms. One increasingly popular, but often underpublicized method is the Indoor Air Quality Procedure (IAQP), a lesser-known path to achieving ASHRAE ventilation compliance. While many facilities still follow the traditional Ventilation Rate Procedure (VRP), IAQP offers significant advantages, especially when executed with proven air purification technologies.   What is IAQP? ASHRAE Standard 62.1-2022 defines the Indoor Air Quality Procedure as an alternative method for ventilation compliance. Unlike the Ventilation Rate Procedure, which relies solely on increasing outdoor air intake, IAQP allows for a more energy conscious approach that considers indoor pollutant levels and the use of air cleaning technologies to recirculate purified air that has already been conditioned. IAQP focuses on measuring and controlling indoor contaminants like VOCs (Volatile Organic Compounds), such as formaldehyde, and particulate matter, allowing schools to tailor their ventilation strategies to real conditions rather than fixed formulas. This can lead to significant energy savings and better control of indoor air quality, particularly in climates where bringing in large volumes of outside air is energy intensive. Why Schools Are Choosing IAQP Energy Efficiency Through Reduced Outdoor Air Intake Traditional ventilation strategies require bringing in large amounts of outdoor air, which can significantly increase heating and cooling loads—especially in regions with extreme weather. IAQP allows schools to reduce outdoor air intake by safely offsetting it with high-performance air purification, leading to dramatic energy savings. This not only cuts utility costs but also reduces strain on aging HVAC systems, extending their useful life. Healthier Learning Environments Improved indoor air quality has been linked to better cognitive function, higher test scores, and fewer sick days. By targeting and removing harmful pollutants likeM2.5 and VOCs, IAQP supports a healthier environment for both students and staff. This means more consistent attendance, improved concentration, and a tangible impact on academic performance and well-being. Lower Capital Costs IAQP allows schools to meet ventilation standards without upsizing HVAC systems to handle excessive outdoor air requirements. This can result in substantial savings on new construction or renovation projects, as mechanical systems can be designed for lower capacity while still achieving compliance. For existing buildings, this approach often eliminates the need for expensive retrofits or system overhauls. Stronger School Reputation Through Sustainability and Wellness Adopting IAQP positions schools as forward-thinking leaders in health and environmental responsibility. By improving indoor air quality and reducing energy use, schools can actively contribute to sustainability and decarbonization goals, while also enhancing occupant wellness. These improvements support schools pursue certifications such as WELL and LEED—demonstrating a clear commitment to creating safe, healthy, and future-ready learning environments that attract families, staff, and community support. Who Else Is Making the Change? While IAQP adoption may not be making headlines, a growing number of schools, manufacturing facilities, and office buildings are making the switch. Facilities across the U.S. are using IAQP to modernize air quality strategies without the burden of overhauling mechanical systems, and are already seeing the benefits in energy savings, occupant wellness, and operational flexibility. These organizations may not always publicize their methods, but their results speak for themselves: measurable improvements in indoor air quality, reduced HVAC loads, and enhanced learning and working environments. As awareness grows and more case studies emerge, IAQP is quickly becoming a best-kept secret in smarter, more sustainable facility management. AirBox: A Trusted Partner in IAQP Implementation At AirBox, we understand that adopting IAQP can feel like uncharted territory. That’s why we offer end-to-end engineering support to help schools and other facilities evaluate, design, and deploy IAQP with confidence. We design our line of commercial-grade High-Volume Purifiers (HVPs) specifically to support IAQP compliance, offering verified filtration efficacy performance against key contaminants like PM2.5, VOCs, and airborne pathogens. AirBox also offers IAQP Verification Testing after implementation to verify the removal of ASHRAE Table 6-5 contaminants. Whether you're looking to retrofit an aging HVAC system or design a new facility with IAQP from the ground up, AirBox provides the tools, documentation, and guidance you need to meet standards and surpass expectations. Thinking about IAQP but not sure if it’s the right move? You’re not alone. Let’s talk about how schools are quietly making the switch and how AirBox can help you do the same, out loud and with confidence ...

The U.S. Green Building Council (USGBC) has introduced LEED Version 5, incorporating significant updates to enhance indoor air quality (IAQ) and promote sustainability. This latest version reflects a growing emphasis on performance-based outcomes, occupant health, and climate resilience. With changes aimed at aligning certification requirements with current building science and operational realities, LEED v5 marks a major step forward in the evolution of green building standards. Additionally, the updates focus not only on reducing environmental impact but also on ensuring that indoor spaces are healthier and more responsive to the needs of building occupants.     What’s New in LEED Version 5? The transition to LEED Version 5 signals a more advanced approach to addressing various environmental concerns, particularly those related to human health. The most notable addition to the proposed update is the incorporation of the latest indoor air quality standards set forth by ASHRAE. Specifically, LEED v5 allows the adoption of certain practices within ASHRAE Standard 62.1-2022 and ASHRAE Standard 241-2023 as earnable credits, which lays out comprehensive guidelines for maintaining healthy indoor environments.   Indoor Air Quality Procedure ASHRAE introduced a new Indoor Air Quality Procedure (IAQP) in Standard 62.1-2022, enabling building designers and operators to reduce outdoor air intake by incorporating air cleaning into ventilation design. This flexibility allows buildings to maintain healthier indoor environments without strictly following traditional, often outdated, ventilation requirements. By endorsing this standard, LEED Version 5 promotes practices that adapt to the dynamic nature of indoor air quality, enhancing overall occupant health and productivity. Indoor Air Quality Assessment Testing In addition to the earnable credits through the implementation of the IAQP, LEED Version 5 also includes specifications for indoor air quality testing outlined in ASHRAE Standard 62.1-2022. These requirements provide a detailed framework for evaluating the air quality within buildings, emphasizing the measurement of various contaminants, testing equipment calibration specifications, and the processes in which the testing must be performed. Air Cleaner Effectiveness Testing ASHRAE Standard 241-2023 lays out guidelines for prescriptive indoor air quality management when there is a heightened risk for infectious aerosol contamination, and for the first time, provides quantitative testing requirements for the effectiveness of air cleaning technology. When adding indoor air cleaning systems to ventilation design, LEED Version 5 will allow credits to be earned when such devices are tested for ASHRAE Standard 241-2023 and ASHRAE Standard 62.1-2022 requirements. By aligning with ASHRAE’s rigorous testing standards, the LEED Version 5 framework encourages the adoption of proven air cleaning technologies, empowering building owners and designers to make informed decisions that contribute to healthier indoor environments. Consequently, this initiative supports sustainability goals and fosters building resilience, promoting a guaranteed approach to environmental and public health in the built environment.   AirBox: Bringing Certification to Life AirBox is an asset for achieving LEED Version 5 certification. The AirBox IAQ Testing Services fully align with LEED's requirements for earning IAQ Testing credits, ensuring compliance with the latest standards. Additionally, AirBox High-Volume Purifiers (HVPs) play a critical role in meeting ASHRAE’s Indoor Air Quality Procedure (IAQP), which helps reduce energy consumption and supports the attainment of LEED credits for improved indoor air quality. With these integrated solutions, AirBox helps building projects achieve sustainability and occupant health goals, streamlining the path to LEED certification.   Conclusion LEED Version 5 represents a significant advancement in integrating IAQ and energy efficiency into building design. By adopting the IAQP and aligning with ASHRAE's latest standards, LEED Version 5 encourages the development of buildings that prioritize occupant health and environmental sustainability. Professionals in the building industry should familiarize themselves with these updates to ensure compliance and leverage the opportunities presented by this enhanced certification framework.   ...

[Charlotte, North Carolina] - [February 19th, 2025] - AirBox, a leading innovator in indoor air quality solutions, announced the groundbreaking launch of the Vortex 4000 HVP (High-Volume Purifier), the first-ever air purifier designed to provide for both ASHRAE Standard 241-2023 IRMM and ASHRAE Standard 62.1-2022's Indoor Air Quality Procedure applications, along with their entire line of HVPs. In response to growing market demands, this revolutionary unit delivers an unprecedented 4,000 CFM (cubic feet per minute) of clean air while prioritizing reduced energy consumption and indoor environmental responsibility. AirBox meticulously engineered the Vortex 4000 HVP to tackle large spaces and meet the growing demand for better indoor air quality. As a result, the AirBox HVPs are a game-changer in building purification and infection risk management. Key Features of the Vortex 4000 HVP Dual ASHRAE Compliance ASHRAE Standard 62.1-2022's Indoor Air Quality Procedure (IAQP) dictates minimum ventilation rates needed to ensure safe and healthy indoor air quality while effectively reducing energy consumption and promoting sustainability and decarbonization goals using recirculated purified air to minimize outdoor air intake. At normal operating fan speeds of up to 2,000 CFM, this High-Volume Purifier easily provides for those requirements. Furthermore, with the click of a button, it can produce massive amounts of clean air to meet ASHRAE Standard 241 requirements for Infection Risk Management Mode (IRMM). The Vortex 4000 HVP can double its airflow up to 4,000 CFM to minimize the risk of airborne viral transmission during times of heightened infectious risk. AirBox Advanced Operating System: Smarter, More Efficient Management The AirBox Advanced Operating System (AOS) connects through cellular or Wi-Fi to a cloud-based mobile and web dashboard with Building Management System integration options. This intuitive system allows facility managers to monitor, adjust, and schedule unit operations, effectively reducing maintenance time and costs. Additionally, the AOS displays live data from integrated differential pressure, TVOC, PM2.5, and CO2 sensors for indoor air quality metrics and to track filter efficiency and replacement timelines. In addition, users can set IRMM (Infection Risk Management Mode) fan speeds for all AirBox devices in the building for easy deployment of clean air for things like flu outbreaks, wildfires or outdoor pollution events making these products ideal for a building owner's Indoor Air Quality Risk Management Plan. Advanced Filtration for Cleaner Air AirBox designed the Vortex 4000 HVP with Advanced Molecular Adsorbent and Certified HEPA filtration, which effectively removes airborne pathogens, Volatile Organic Compounds (VOCs), allergens, and particulate matter from the indoor air. The unit is third-party tested and proven to remove all h armful contaminants, or Contaminants of Concern (COCs), listed in ASHRAE Standard 62.1-2022 Table 6-5, ensuring cleaner, healthier air in all indoor environments. Additionally, all AirBox HVP products are leak tested in accordance with IEST-RP-CC034.5 with Certification labeling. Adaptable Installation AirBox designed the Vortex 4000 HVP to integrate seamlessly into virtually any HVAC design. This versatile unit can function as a standalone air purifier, seamlessly integrate into existing ductwork, or be configured as a modular component within larger, more complex systems. Moreover, the availability of an outdoor version, featuring high-quality R12 foam insulation within double-wall construction, extends its application to rooftop installations and other exposed environments, ensuring consistent performance even in harsh conditions. This breadth of integration options allows HVAC designers ultimate flexibility to meet unique project requirements with ease. The Future of Commercial IAQ As building development accelerates and the importance of health-conscious design grows, indoor air quality, decarbonization, and sustainability have emerged as critical factors in building design and operations. The commercial industry is increasingly recognizing the paramount importance of indoor air quality (IAQ), driven by evolving standards and a greater awareness of the impact on occupant health, productivity, and overall well-being. With IAQ standards gaining traction globally, Dubai is a perfect example by taking a leading role by implementing stricter regulations, including ASHRAE Standards 241 and 62.1-2022. This proactive approach creates a demand for advanced IAQ solutions, and AirBox positioned the Vortex 4000 HVP to lead the charge, effectively addressing these stringent standards and ensuring cleaner, healthier indoor environments. AirBox: Innovating for a Healthier Sustainable Future With an unwavering commitment to innovation and compliance, AirBox continues to lead the way in indoor air quality technology. The Vortex 4000 HVP is a testament to AirBox's dedication to providing top-tier solutions that not only meet industry standards but also exceed the expectations of building owners and facility managers worldwide. About AirBox AirBox is an industry leader in contamination control and pathogen mitigation for commercial facilities and occupied spaces. AirBox has 35 years of experience in micro-contamination settings associated with semiconductor and life science process environments. Stemming from its background in cleanroom construction and performance certification, AirBox has expertise in building code standards, specializing in ventilation optimization, Indoor Air Quality Testing requirements that establish minimum regulatory requirements for acceptable indoor air quality, and leveraging the latest International Mechanical Code (IMC) and ASHRAE Standards for its clients. The Vortex 4000 HVP is now available for purchase. AirBox invites interested parties to learn more about the product by visiting the website or contacting one of our experts ...

As building development accelerates and the importance of health-conscious design grows, indoor air quality (IAQ), decarbonization, and sustainability have emerged as critical factors in building design and operations. The Indoor Air Quality Procedure (IAQP) has gained significant traction worldwide, offering a framework for achieving better indoor environments. A notable example of this trend is Dubai's recent adoption of ASHRAE Standard 62.1-2022 and ASHRAE Standard 241-2023 for both retrofit and new construction design, which provide guidelines for IAQ in commercial buildings. In November of 2024, the Ministry of Energy and Infrastructure (MoEI) announced the adoption of the latest technical specifications from the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) to enhance indoor air quality and achieve energy goals in government buildings across the UAE. This article explores the positive implications of these adoptions, the role of IAQP, and the global movement towards improved indoor air quality standards. Understanding IAQP and ASHRAE Standard 241-2023 What is IAQP? The Indoor Air Quality Procedure is a new performance-based ventilation design provided in ASHRAE Standard 62.1-2022, which aims to ensure immense decarbonization and energy savings using recirculated cleaned indoor air. Rather than strictly adhering to prescriptive ventilation rates, IAQP allows for flexibility based on specific needs of a space and its occupants. This procedure considers various factors, including the building's use, occupancy levels, and the nature of the indoor environment, enabling a more tailored and effective strategy for maintaining an acceptable breathing zone. What is ASHRAE Standard 241-2023? ASHRAE Standard 241 - Control of Infectious Aerosols provides requirements aimed at mitigating the transmission of airborne infectious contaminants in indoor environments. Developed by ASHRAE at the request of the White House, this standard establishes minimum requirements aimed at reducing the risk of disease transmission through exposure to infectious aerosols. It outlines strategies for designing and operating HVAC systems to enhance indoor air quality, including recommendations for the use of high-efficiency filters, effective air distribution methods, and the incorporation of proven air cleaning technologies. Key highlights include:   Infection Risk Management Mode: As one of the mitigation techniques listed, this mode applies during identified times of elevated airborne disease transmission risk, utilizing compliant air filtration systems for enhanced air output. Filtration and Air Cleaning Requirements: This standard outlines filtration and air cleaning effectiveness testing requirements. Subtractive technologies utilizing mechanical fibrous filtration, such as HEPA filters, and additive technologies that inactivate aerosols and particles, such as UV (ultraviolet) and bipolar ionization, should meet the test requirements to establish effectiveness and safety (inclusive of chemical analyte byproducts generation). By integrating these standards into building codes and regulations, cities and nations are working to create healthier environments for occupants. Dubai's Commitment to IAQ Why Dubai? Known for its rapid development and innovation, Dubai's embrace of IAQP and ASHRAE Standard 241 solidifies its commitment to sustainability and public health. This initiative aims to improve public health by controlling airborne infectious agents and ensuring that indoor spaces are safe and healthy. The new standards will play a vital role in making infrastructure projects more resilient to airborne pollutants, with a focus on energy efficiency and occupant well-being. Implications of the Adoptions Improved Health Outcomes: By adhering to these standards, Dubai will create spaces that enhance occupant health and well-being. Improved indoor air quality can reduce respiratory issues, allergies, and other health problems linked to poor indoor environments, ultimately reducing absenteeism and increasing cognitive function. Sustainability and Decarbonization Goals: Dubai is on a mission to become one of the world's leading sustainable cities. The implementation of IAQP supports this goal by reducing outdoor air intake, in-turn reducing energy consumption while ensuring adequate ventilation and air quality. Operational Resilience: A commitment to high standards of IAQ mitigates disruptions to operations caused by infectious outbreaks or outdoor air pollution events, positioning Dubai as a pioneer in building safety and resilience. Global Leadership: By adopting leading international standards like ASHRAE Standard 62.1-2022 and ASHRAE Standard 241-2023, Dubai positions itself as a global leader in building safety and sustainability. The MoEI reaffirmed its commitment to implementing these standards nationwide, positioning the UAE as a leader in sustainable infrastructure development and public health initiatives. Global Trends in IAQP Adoption Dubai is not alone in this movement; cities worldwide are increasingly recognizing the significance of improved indoor air quality and decarbonization. Key trends include: Regulatory Changes: Many states are publishing legislation aimed at improving indoor air quality in facilities. Other organizations, such as the International Mechanical Code (IMC) and the United States Green Building Council (USGBC), are adding IAQP language into building standards and environmental credits. Growing Awareness: As individuals and organizations become more informed about the impact of indoor air quality, there is a collective shift toward prioritizing clean air and sustainable solutions. This heightened consciousness ultimately leads to policymakers adopting performance-based ventilation practices and investing in innovative technologies. Technological Advancements: New building standards have encouraged innovations in HVAC technology, indoor air quality testing, and building management systems to facilitate the effective implementation of IAQP and ASHRAE Standard 241. The Future of Building Standards The adoption of ASHRAE Standard 62.1-2022 and ASHRAE Standard 241 in Dubai is a pivotal step in the global movement towards improved indoor air quality and decarbonization. As cities continue to face challenges related to public health and environmental sustainability, the new performance-based ventilation design provides a viable solution that combines flexibility, performance, and health considerations. With Dubai leading the way, the trend toward prioritizing IAQ is set to gain even more traction worldwide, ultimately fostering healthier and more sustainable living and working environments for all. As more cities recognize the importance of indoor air quality and adopt standards like ASHRAE Standard 62.1-2022 and ASHRAE Standard 241, a healthier future for the built environment becomes increasingly attainable. Get Started AirBox can assist your design team in implementing the Indoor Air Quality Procedure or ASHRAE Standard 241 whether it's for retrofit or new construction. Our team of experts specializes in leveraging the newest ventilation and indoor air quality standards for our clients. We offer a comprehensive, turnkey solution for IAQP, providing everything from design assistance and feasibility calculations to solutions and verification testing. Reach out to our team to get started on feasibility calculations and projected ROI for your performance-based ventilation design (IAQP) ...

The Indoor Air Quality Procedure (IAQP) is a performance-based ventilation method that incorporates air cleaning into ventilation design. This allows a reduction of outdoor air intake required to ensure acceptable indoor air quality. This, in turn, effectively reduces strain on HVAC systems to allow for less energy consumption and less HVAC capacity in new construction. The History of IAQP: As the foremost authority for building design, ASHRAE continually updates commercial ventilation design standards via ASHRAE Standard 62.1. This standard ensures ventilation provides a safe, breathable environment for building occupants. The most current version is ASHRAE Standard 62.1-2022 which introduced a new Indoor Air Quality Procedure (IAQP) that not only ensures safe indoor air quality (IAQ), but less building energy consumption. The Old IAQP: The Indoor Air Quality Procedure was first introduced in ASHRAE Standard 62.1 in 1981 as an alternative ventilation method to the most commonly used Ventilation Rate Procedure (VRP). The IAQP approach offered a framework for maintaining building comfort in tandem with safe indoor air quality. This allowed for greater flexibility in addressing specific environmental conditions and pollutant sources. While the IAQP established foundational principles for indoor air quality, it left certain aspects of research and development to the project engineers and other professionals. Consequently, this encouraged innovation and adaption, as engineers could tailor solutions based on the unique needs of each building. However, this also meant that practitioners had to navigate a landscape with varying levels of understanding and implementation of those guidelines, highlighting the need for ongoing research and collaboration in the field. The New IAQP: Comparatively, the recent updates to the Indoor Air Quality Procedure in ASHRAE Standard 62.1-2022 replace subjective interpretations by project engineers with clear, quantitative requirements. This ensures acceptable indoor air quality and reduces risk for those designing with this ventilation method. To list, let's talk about these changes: What are the differences? List of Design Compounds: Table 6-5 is included in the "new" IAQP which lists 15 contaminants or "Design Compounds" and their limits. This addition gives engineers a finite list to measure and certify acceptable indoor air quality has been met. Indoor Air Quality Verification Testing: ASHRAE provides IAQ testing requirements to verify system contaminant removal efficiency. The requirements include allowed laboratory test methods, direct read instrument specifications, minimum calibration, and more. IAQP Calculator: ASHRAE developed a third-party user-friendly calculator to simplify IAQP calculations and predict IAQ impact and performance. The Benefits of IAQP: Why stick to the VRP for your building's ventilation design when there's a better option? The new IAQP allows recirculation of purified air, drastically reducing the need for outside air. This reduction brings several benefits: Energy and Cost Savings: Reducing the requirements for outside air lessens the demand on HVAC systems. This results in decreased energy consumption for heating and cooling, ultimately lowering operational cost and supporting decarbonization and sustainability efforts. Reduced Equipment Requirements: By minimizing outdoor air intake, it becomes possible to downsize various equipment, including chillers, cooling towers, heating systems, and air handlers. Significantly, this leads to cost savings during installation and lowers requirements for energy recovery systems or dedicated outdoor air systems. Enhanced Indoor Air Quality: The IAQP enables strict control over indoor air contaminants through the use of advanced filtration and compliant air cleaning technologies. This leads to what ASHRAE deems acceptable indoor air quality. Resilience Against Outdoor Threats: Relying heavily on outside air can expose occupants to elevated levels of pollutants. Specifically, as wildfires and urban pollution risks grow. IAQP's focus on contaminant control makes buildings more resilient by reducing the intake of potentially harmful outdoor air. This is crucial for areas experiencing ongoing air quality issues. When Will Your State Adopt the IAQP into Building Code? Fortunately, you don't have to wait. The International Mechanical Code (IMC) already permits the IAQP, which is described as an "engineered ventilation system design." In addition, the IMC plans to revise its next revision to support the IAQP further, following a request from ASHRAE. Furthermore, the U.S. Green Building Council (USGBC) recently published it's LEED Version 5. One of the various LEED Certification credits includes adopting the Indoor Air Quality Procedure as it is written in ASHRAE Standard 62.1-2022. Similarly, performing indoor air quality testing to the requirements in the same standard also counts towards LEED Certification. How Do I Implement the IAQP? With largely in-room portable air purifiers in the market, how is the new performance-based ventilation procedure, or IAQP, possible? AirBox's line of High-Volume Purifiers (HVPs) that are specifically designed for the Indoor Air Quality Procedure. The units range from 1,000 to 9,200 CFM to cover large scale, multi-room, and whole-building purification depending on building design. AirBox HVPs utilize advanced filtration to effectively remove all design compounds and reduce outdoor air intake by 50%-80%. As a result, this generates immense yearly energy savings and a reduction in HVAC capacity in new construction. Additionally, the AirBox Analytical Science Group can perform the required Indoor Air Quality Verification Testing in accordance with all ASHRAE Standard 62.1-2022 testing requirements. AirBox combines data from cutting-edge sensor technology with in-depth lab analysis performed by an accredited third-party lab to ensure a comprehensive and accurate verification of indoor air quality. Get Started: AirBox can assist your design team in implementing the Indoor Air Quality Procedure whether it's for retrofit or new construction. Our team of experts specializes in leveraging the newest ventilation and indoor air quality standards for our clients. Specifically, we offer a comprehensive, turnkey solution for IAQP, providing everything from design assistance and feasibility calculations to solutions and verification testing. Reach out to our team to get started on feasibility calculations and projected ROI ...

In response to the growing frequency and intensity of wildfires and prescribed burns, ASHRAE (the American Society of Heating, Refrigerating and Air-Conditioning Engineers) has released Guideline 44-2024. This comprehensive document provides guidance on protecting building occupants from the harmful effects of smoke during wildfire and prescribed burn events. The guideline addresses various aspects of building design, engineering, and operation, marking a significant step forward in public health and safety regarding air quality in residential and commercial structures. Overview of ASHRAE Guideline 44-2024 Purpose The core purpose of ASHRAE Guideline 44-2024 is to offer practical strategies and best practices for mitigating the risks associated with smoke exposure during wildfire events. It aims to assist building owners, engineers, architects, and facility managers in developing effective systems and processes that ensure a safe indoor environment in the face of poor outdoor air quality. Key Features 1. Risk Assessment and Planning Guideline 44 emphasizes the importance of understanding local wildfire risks and incorporating this knowledge into building design and operations. It encourages a thorough assessment of potential hazards and the development of contingency plans that prioritize occupant safety. 2. Building Strategies The guideline provides strategies for enhancing the building envelope to minimize smoke infiltration, as well as ventilation changes to better control indoor air quality while minimizing outdoor air intake during polluted events. Some of these building enhancements include sealing gaps in the structural design, employing MERV (Minimum Efficiency Reporting Value) 13 filters within HVAC systems, and adding proven air cleaning technologies to reduce indoor smoke levels. 4. Communication and Training Another essential aspect of the guideline is the emphasis on communication protocols. Organizations are urged to train staff on recognizing air quality concerns related to wildfires and to establish clear communication channels with occupants regarding safety measures and building operations. 5. Post-Event Procedures Post-wildfire smoke events can lead to lingering air quality issues. ASHRAE Guideline 44 includes protocols for assessing and restoring indoor air quality after such events, including flushing out the space, assessing and verifying the indoor air quality with compliant testing, and more. Implementation and Compliance Implementing the recommendations outlined in ASHRAE Guideline 44-2024 may require collaboration among various stakeholders, including building owners, design professionals, and facility managers. By adhering to the guideline, organizations can enhance occupant safety and reduce liability associated with smoke exposure. Putting Standards Into Actions If wildfire smoke is prevalent in your area, immediate changes can be easily made. AirBox offers highly compliant portable air purifiers for an easy plug-and-play set-up. We have also recently introduced its line of High-Volume Purifiers (HVPs) that utilize Certified HEPA and Advanced Molecular Adsorbent filtration capable of catching smoke and other pollutants in indoor air. These units range from 2,000 to 9,000 CFM to cover large scale, multi-room, and whole-building purification depending on building design. With the AirBox Advanced Operating System on board, the AirBox HVPs can switch to a building Smoke Readiness Plan with the press of a button. Even in normal operating modes, these units can reduce outdoor air intake by 50%-90% resulting in immense yearly energy savings and a reduction in HVAC capacity in new construction using the new ASHRAE Indoor Air Quality Procedure ventilation design. In addition, the AirBox Analytical Group can also perform Indoor Air Quality Assessment and Verification Testing in accordance with all testing requirements put forth by ASHRAE Standard 62.1-2022. AirBox combines data from cutting-edge sensor technology with in-depth lab analysis performed by an accredited third-party lab to ensure a comprehensive and accurate assessment and verification of indoor air quality. AirBox can assist your design team in implementing ASHRAE Guideline 44 whether it’s for retrofit or new construction. Our team of experts specializes in leveraging the newest ventilation and indoor air quality standards for our clients. Reach out to our team to get started. A Cleaner Future ASHRAE Guideline 44-2024 signifies a vital step forward in addressing the challenges posed by smoke from wildfires and prescribed burns. By providing a comprehensive framework for protecting building occupants, the guideline empowers architects, engineers, and facility managers to implement effective strategies that enhance indoor air quality and reduce health risks during wildfire events. For more detailed insights, stakeholders are encouraged to review the complete ASHRAE Guideline 44-2024 document, available through the ASHRAE website and other professional channels ...

The U.S. Green Building Council (USGBC) recently published its proposed LEED Version 5 for public review. This significant milestone not only symbolizes an ongoing commitment to enhancing sustainability in the built environment, but it also underscores a pivotal shift in prioritizing indoor air quality (IAQ) standards-a move that is more crucial than ever in the wake of recent global health challenges we've faced. What's New in LEED Version 5? The transition to LEED Version 5 signals a more advanced approach in addressing various environmental concerns, particularly those related to human health. The most notable addition to the proposed update is the incorporation of the latest indoor air quality standards set forth by ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers). Specifically, LEED Version 5 will allow the adoption of certain practices within ASHRAE Standard 62.1-2022 and ASHRAE Standard 241-2023 as earnable credits, which lays out comprehensive guidelines for maintain healthy indoor environments. Indoor Air Quality Procedure ASHRAE Standard 62.1-2022 introduced a new Indoor Air Quality Procedure (IAQP), enabling building designers and operators to incorporate air cleaning into ventilation design to reduce outdoor air intake resulting in immense energy savings. This flexibility allows buildings to ensure healthier indoor environments without being strictly bound to traditional, often outdated, ventilation requirements. By endorsing this standard, LEED Version 5 promotes practices that adapt to the dynamic nature of indoor air quality, enhancing overall occupant health and productivity. Indoor Air Quality Assessment Testing In addition to the earnable credits through the implementation of the IAQP, LEED Version 5 also includes specifications for indoor air quality assessment testing also outlined in ASHRAE Standard 62.1-2022. These requirements provide a detailed framework for evaluating the air quality within buildings, emphasizing the measurement of a variety of contaminants, testing equipment calibration specifications, and the processes in which the assessments must be performed. Air Cleaner Effectiveness Testing ASHRAE Standard 241-2023 lays out guidelines for prescriptive indoor air quality management when there is heightened risk for infectious aerosol contamination and for the first time, provides quantitative testing requirements for the effectiveness of air cleaning technology. When adding indoor air cleaning systems to ventilation design, LEED Version 5 will allow credits to be earned when such devices are tested for ASHRAE Standard 241-2023 and ASHRAE Standard 62.1-2022 requirements. By aligning with ASHRAE's rigorous testing standards, the LEED Version 5 framework encourages the adoption of proven air cleaning technologies, empowering building owners and designers to make informed decisions that contribute to healthier indoor environments. This initiative not only supports sustainability goals but also fosters resilience in buildings, promoting a guaranteed approach to environmental and public health in the built environment. Public Review: Your Chance to Contribute The launch of the public review phase allows stakeholders to provide input on the proposed LEED Version 5. This collaborative approach is vital for ensuring that the credits are practical, relevant, and aligned with the evolving needs on the communities. Engaging in this process not only contributes to refining the crediting system but also fosters a collective commitment toward creating healthier and more resilient built environments for future generations. Conclusion The publication of proposed LEED Version 5 by the USGBC marks a watershed moment in the realm of sustainable buildings. By embracing the ASHRAE Standard 62.1-2022's Indoor Air Quality Procedure, its IAQ assessment specifications, and ASHRAE Standard 241-2023 air cleaner testing requirements, the USGBC is not only ensuring that buildings meet a higher standard of indoor air quality, but it is also equipping building professionals with the tools necessary to actively monitor and improve these conditions. In a world where the implications of air quality have never been more apparent, the proposed changes signal a commitment to sustainability that values human health alongside environmental stewardship. We encourage everyone in the industry to engage in the public review process, ensuring that the evolution of LEED reflects the collective wisdom and needs of the community. Together, let's strive for a future where our built environments support not only the planet but the well-being of every individual ...