Equivalent Clean Airflow and the Importance of Validating Ventilation and Filtration Rates

ASHRAE Standard 241 introduces the concept of Equivalent Clean Airflow — a framework for combining mechanical ventilation, filtration, and other proven technologies to ensure healthy indoor environments. In this session, we cover indoor airborne contaminants and ASHRAE 62.1, the role of ventilation and filtration, and why validation matters for both IAQ and energy performance.