COVID and HVAC Filters
For Commercial and Industrial Systems
University of Oregon Air Flow Animation
From the University of Oregon Institute for Health in Indoor Environments, an animation showing indoor aerosol fate and transport. The last simulation suggests greater air intake, perhaps via an Economizer.
NAFA Air Filtration Best Practice Guidelines
NAFA’s robust Best Practices page has multiple COVID links and downloads. Also see https://www.nafahq.org/category/covid-19/
Guidance for Building Operations During the COVID-19 Pandemic
Ashrae’s Guidance for Building Operations (PDF download) is a short concise article with many useful citations and links. Also see https://www.ashrae.org/technical-resources/resources.
Building Owners and Managers Association International
The Building Owners and Managers Association International COVID page, with many pdf’s and links.
Why “Six feet may not be enough.” A report on the study of aerosol droplets. (This is our sole non-HVAC article.)