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04rob
on Jan 16, 2022
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Ready for an N95? Here's how to find a high-qualit...
This has been studied. A beard does compromise the seal, but to a lesser extent on n95s than in other masks:
https://pubmed.ncbi.nlm.nih.gov/34006963/
NDizzle
on Jan 16, 2022
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0 to 10mm!? Some study. That’s barely a beard. Loses 40% effectivenes at 10mm.
goodside
on Jan 16, 2022
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No, that's the figure for KF94 and KN95 masks. For N95s it's only about a 20% loss of FFE.
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Search:
https://pubmed.ncbi.nlm.nih.gov/34006963/