New ASHRAE IAQ Standard Aims to Reduce Infections

An HVAC Minute Video Update: July 31, 2023

With the COVID-19 pandemic seemingly behind us, ASHRAE is working toward a future of safer air. Recently, ASHRAE published a consensus-based, code-enforceable IAQ standard aimed at reducing the indoor transmission of infectious aerosols. ASHRAE Standard 241, Control of Infectious Aerosols, establishes minimum requirements for reducing the risk of the transmission of airborne pathogens, such as the SARS-COV-2 virus, which causes COVID-19; the flu virus; and other pathogens in buildings like single- and multi-family homes, offices, schools, and health-care facilities. The standard applies to new and existing buildings and major renovations and provides requirements for many aspects of air-system design, installation, operation, and maintenance. Important topics addressed in the standard include: Infection Risk Management Mode (IRMM); Requirements for Equivalent Clean Airflow Rate; Requirements for Use of Filtration and Air Cleaning Technology; and Planning and Commissioning.

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Hannah Belloli is an editor at The ACHR NEWS. She has been with BNP Media for over two years. Hannah holds a bachelor's degree in communications from Wayne State University, where she also obtained minors in English, journalism, and creative writing. As a daughter of a carpenter, she has admired the trade industry for as long as she can remember.