Everyone drop what you're doing and read this one tweet. (also, CC @zeynep)https://twitter.com/politicalmath/status/1242121273397760003 …
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(Also N95 has a stronger case of misuse potential, they are genuinly uncomfortable over time. So not necessary in general and overkill plus bigger downside).
finally I'm catching on that this thread is about a specific type of mask, not masks in general 
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