Example of how the purpose of masks for ordinary people is still not understood. The ones with exhalation valves, including N95s, should not be worn around people, period. Not just in sterile hospital operating rooms as NYT claims. Cotton mask>valved N95.https://www.nytimes.com/interactive/2020/health/coronavirus-best-face-masks.html …
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Folks, okay. Getting lots of questions. Working now on an article explaining all this (with co-authors including medical experts
). Will update here as well.https://twitter.com/tomgara/status/1251181090477391873 …Show this thread -
For people interested in the science of masks to protect everyone, here’s a detailed article laying it all out. (That’s a preprint, it’s under review).https://twitter.com/zeynep/status/1249805628240953346 …
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Oh, good, the NYT article on masks has been corrected, though they don't note that there has been a correction. Still I'm glad it's corrected!pic.twitter.com/scr7K1TleW
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This is not true. Valved masks still trap most droplets.
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Maybe, depends on design. But not as well as a plain old cotton masks. I've seen some with flaps over it, that's better. But this thing seems to spread fairly well if it can get out even a bit out of the mouth (household transmission, cruise ships, navy ships, restaurants...)
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I thought I was doing the right thing. now learning I could be harming my fellow citizens makes me feel anxious and terrible. My feeling was that the reason we're being told to make our own masks is because the Fed Govt fell down on providing us all with surgical masks.
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Can’t wait until I see people wandering around in n95s AND cotton masks but BOTH positioned under the nose Probably while touching everything including their phone and face with the gloves they’ve been wearing since they got up that morning

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