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Kenice
@kenice
The effectiveness of a mask—how much protection a mask provides the wearer—is a combination of two major elements. First, there’s the ability of the material to capture particles. The second factor is the fraction of inhaled or exhaled air leaking out from around the mask—essentially, how well a mask fits.
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Cyberlee100
@cyberlee100
Something is in progress building big 20đź‘Ź
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