Andy enlists two experts — UC Davis Dean of Engineering Rich Corsi and “Mask Nerd” Aaron Collins — to better understand the importance of masking and indoor air quality during this Omicron wave. Fan favorite Rich returns to talk about how to think about ventilation, ways to reduce our inhalation dose, and how that’s changed with Omicron. Aaron breaks down everything you need to know about the different kinds of masks out there, including what masks are best for kids. Today's episode is a battle of the nerds, and we all come out winners in the end with practical information to help us stay safer during this Omicron wave and beyond.

Keep up with Andy on Twitter @ASlavitt and Instagram @andyslavitt. 

Follow Rich @CorsIAQ and Aaron @masknerd on Twitter.

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Check out these resources from today’s episode: 

• Check out Aaron’s YouTube channel for more mask testing and reviews: https://www.youtube.com/channel/UC3fF_rzkmZD0ufN685YE7lg
• Learn how to build a Corsi-Rosenthal box here: https://cleanaircrew.org/box-fan-filters/
• Here’s what the CDC has to say about the different types of masks and respirators: of-masks.html">https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/types-of-masks.html
• Read more on the study out of the University of Bristol’s Aerosol Research Centre that Andy asked Rich about in today’s episode: https://www.theguardian.com/world/2022/jan/11/covid-loses-90-of-ability-to-infect-within-five-minutes-in-air-study
• Find a COVID-19 vaccine site near you: https://www.vaccines.gov/ 
• Order Andy’s book, Preventable: The Inside Story of How Leadership Failures, Politics, and Selfishness Doomed the U.S. Coronavirus Response: https://us.macmillan.com/books/9781250770165 

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