Webinar Slides: Understanding ASHRAE’s Recommendations on Filtration and Disinfection for COVID19 Version Download 287 File Size 2 MB File Count 1 Create Date October 22, 2020 Last Updated October 22, 2020 Download Description Webinar Slides: Understanding ASHRAE’s Recommendations on Filtration and Disinfection for COVID19 NAFA Webinar October 21, 2020 Source: Kathleen Owen, FASHRAE