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Old 10-07-2020, 03:02 PM   #759
glatt
 
Join Date: Jul 2003
Location: Arlington, VA
Posts: 27,717
Is it really something that required "belief."

The only drawback I ever heard from masks that seemed legitimate was that if you use something that is not intended to be a mask as a mask, then you run the risk of breathing in loose fibers given off by that thing.

Actual masks designed to be masks are not a concern.
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