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supermatt
on March 30, 2020
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Austria to make basic face masks compulsory in sup...
>95%, which is why they are called N95.
Symmetry
on March 30, 2020
[–]
They're guaranteed to stop 95% of the hardest to stop particulates which actually tend to be somewhat larger than viruses.
supermatt
on March 31, 2020
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parent
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Yes, i was correcting you on your statement of 99%+. Its >95% of 0.3 micron particles, but as coronavirus is smaller it would be LESS than that - not more).
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