#fittesting — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #fittesting, aggregated by home.social.
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This is amazing, not only a lower cost CPC for measuring mask fit and ultrafine particles in a room, but also a new probe to measure fit of a respirator without destroying it, check out the video from @openaeros and @masknerd to see how it works ( https://www.youtube.com/watch?v=R_P0gM5Gudo ). 🧵 1/
#N95 #CPC #OpenAeros #OpenCPC #Respirator #FitTesting #AirCleaner
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How do we know Saccharine and Bitrex Fit testing work and that passing a fit test using them means a fit factor of >100? It's validated against particle count fit testing using comparative trials.
Here's a cool history of the development of Bitrex fit testing by 3M, which was created with the brief to be less pleasant than Saccharine qualitative fit testing, but safer than irritant smoke.
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Update: shaved to a #1 (3 mm). They both #masks still failed, but the #N95 did better than before. Probably comparable between the the N95 and #KN95. So I’m not sure which to wear in higher-risk situations. The Aura is really comfortable, but I should try some other N95 form factors. #covid #covidIsAirbord #fitTesting