The Association has published an Industry Recommendation to encourage exclusive use of ISO 16890 as the reference standard for air filtration in general ventilation and will host a dedicated webinar on 09 June 2021 to outline its importance and explain the correct selection process for air filtration products under this classification. Considering the COVID-19 pandemic, adherence to the latest standards in air conditioning and ventilation is a critical factor to improve Indoor Air Quality (IAQ) and safety in buildings.