why are masks single use? Why can’t you use them forever.
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Masks are like underwear for your face. The whole time you wear it, it collects all the waste products and water vapor you exhale. Plus, it stays pretty close to body temperature, so it’s a warm, wet environment for all the microbes you’ve breathed out that like those conditions. After you take it off and it dries, it might seem okay, but would you put on a pair of paper underwear you’d been wearing for weeks after a shower just because they’re dry and you can’t see anything wrong with them? Very, very few people would because they know things can be dirty without looking dirty.
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