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Politics : Politics for Pros- moderated
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To: Neeka who wrote (715695)5/22/2020 8:11:09 AM
From: skinowski  Read Replies (2) of 794375
 
210 thread count double layer. Guess it’s considerably better than nothing. It costs several times more than a procedure mask in better times.


Surgical face masks are made with non-woven fabric, which has better bacteria filtration and air permeability while remaining less slippery than woven cloth. The material most commonly used to make them is polypropylene, either 20 or 25 grams per square meter (gsm) in density.



How Surgical Masks are Made, Tested and Used - Thomasnet

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