This product is a zip file that contains files that consist of PowerPoint slides synchronized with the audio-recording of the speaker, PDF files of the slides, and audio only (mp3 format) as noted.

Air filters catch a lot of particles from simple dirt to microbes to bug parts. This seminar presents information on what filters actually catch and how that influences the air we breathe. The first presentation provides an overview of filter forensics: the extraction and analysis of dust on filters. The second shows a specific application to detecting SARS-CoV in air. The last presentation shows evidence of the variability of dust collected on HVAC filters. Filters protect us from pollutants in the air and we should definitely not lick them.

1. Quantitative Filter Forensics: From Filter Dust to Concentrations
   Jeffrey Siegel, Ph.D., Fellow ASHRAE, University of Toronto, Toronto, ON, Canada
2. Estimating Indoor Airborne Concentration of Sars-Cov-2
   Sarah Haines, Ph.D., University of Toronto, Toronto, ON, Canada
3. Ick! I’m Glad I Didn't Breathe That! or What Does Your Air Filter Catch?
   Kathleen Owen, Ph.D., Fellow ASHRAE, Owen Air Filtration Consulting, Cary, NC