Learn about ASHRAE’s new groundbreaking Standard 241, Control of Infectious Aerosols, which establishes minimum requirements to reduce the risk of disease transmission by exposure to infectious aerosols in new buildings, existing buildings, and major renovations. This valuable filmed presentation is by Dr. William Bahnfleth, Professor of Architectural Engineering at Pennsylvania State University, who chairs the project committee for ASHRAE Standard 241. Find out what you need to know to help your facility plan for COVID-19, influenza viruses and other pathogens that cause problems for building occupants. Standard 241 provides requirements for many aspects of air systems design, installation, operation and maintenance. The presentation was given at the 25th Westford Building Science Symposium organized by Building Science Corporation.