My guess is approximately 0.025% of people know thishttps://twitter.com/zeynep/status/1251171855286906880 …
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Thanks for doing that. I didn’t know about this at all
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i did not know this and i did a fair amount of reading on masks before managing to acquire one (1) secondhand box of n95s with a valve bc i am immunocompromised
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I found out when someone on a listserv realized it & suggested
@3M and others who make multiple models prominently point it out on their site. manufacturers should note this. I’d been confused ab why my N95s didn’t have anything related to “fitting” them &were a different shape. -
(Ours were from the fires last year)
End of conversation
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