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Old 03-20-2020, 09:56 AM
Wesley Clark's Avatar
Wesley Clark is online now
Join Date: Aug 2003
Posts: 23,857
My understanding is the coronavirus is about 100nm in diameter. However I've also heard the virus tends to be attached to small mucus or water droplets that are airborne, which means it is much larger, possibly on the micron scale.

However I don't know what size particles a fabric mask would filter out.

Also I hear contradictory things about masks, some say they work and some say they don't.
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