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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Whatcha got on masks causing chest pain? I’ve been living with it. Wondering if a PAPR would avoid that.
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I think you’d need a study of someone with covid19 wearing the mask and if what they breathe out is going anywhere that would possibly infect anyone.
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@threadreaderapp unroll please -
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I think it is great to start with the N95 because that is what people who don't usually wear masks imagine they need. And there we get told why this is not the best option for walking around in a shop.
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). Will update here as well.