I must admit that I have an as-yet-unused packet of surgical masks. But I struggle with how a standard cotton mask will prevent the transmission of a particle which is only about 1/100 micron in size. At the very least, I’d want a high-density weave like denim or something.
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I must admit that I have an as-yet-unused packet of surgical masks. But I struggle with how a standard cotton mask will prevent the transmission of a particle which is only about 1/100 micron in size. At the very least, I’d want a high-density weave like denim or something.
LikeLiked by 1 person