How far does the air project from the user after it goes through that filter? And why the fuck do cartoonists have to ask these questions?https://twitter.com/MayoClinicHS/status/1259241740269170689 …
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By characterizing yourself a “cartoonist”.
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Carbon dioxide is a molecule, not a virus or a water droplet. Masks do nothing to keep CO2 in the mask... molecules like CO2 and O2 are much smaller than the filtration membranes, and pass right through them, but droplets and some viruses get caught by the filter membranes,
End of conversation
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By that definition masks work. Others of us are looking beyond that to a more nuanced question concerning the spread of the virus through the mask in or out and contamination by touching the mask. By that definition masks are ineffective depending upon their construction and use.
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