GO AQS

Author: Sotirios Papathanasiou

  • Ventilation WG – Conclusion

    Ventilation WG – Conclusion

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    Sotirios Papathanasiou
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    The GO AQS ventilation working group convened on April 4, 2025, to discuss various aspects of ventilation in buildings and recommend the best solutions and practices in order to achieve good indoor air quality. Prioritizing Indoor Air Quality and Energy Conservation The session began with a survey of members’ perspectives on the importance of indoor…

  • Filtration WG – Conclusion

    Filtration WG – Conclusion

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    Sotirios Papathanasiou
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    The Filtration Working Group of the GO AQS convened to discuss recommendations for filtration given the multitude of existing options. Filtration Technologies and Their Effectiveness A poll on trusted filtration technologies revealed a broad consensus on mechanical filtration (HEPA and MERV filters) due to their proven performance according to their specifications. Similarly, absorbent filtration using…

  • Radon WG – Conclusion

    Radon WG – Conclusion

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    Sotirios Papathanasiou
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    The Radon Working Group, a part of the Global Open Air Quality Standards initiative, convened to discuss and establish recommendations for indoor radon levels. This session built upon previous discussions focusing on other indoor air pollutants such as particulate matter, carbon dioxide, carbon monoxide, formaldehyde, and nitrogen dioxide. The objective of this working group is…

  • Ozone WG – Conclusion

    Ozone WG – Conclusion

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    Sotirios Papathanasiou
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    The Ozone Working Group (WG) convened on April 2nd, 2025, as part of the Global Open Air Quality Standards initiative, to delve into the specifics of incorporating ozone (O₃) into indoor air quality guidelines. Following previous discussions on particulate matter, carbon dioxide, and carbon monoxide, this session focused on the unique challenges posed by ozone,…

  • Nitrogen Dioxide WG – Conclusion

    Nitrogen Dioxide WG – Conclusion

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    Sotirios Papathanasiou
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    A recent session of the GO AQS working group convened to discuss and propose limits for nitrogen dioxide (NO2) in indoor environments. The discussion involved various aspects, including averaging times, concentration limits, units of measurement, and the feasibility of monitoring. Setting the Stage: Averaging Times and Ceiling Limits The session began with an overview of…