Researchers have tested a variety of popular hacks for improving the fit of KN95 and surgical masks, and found that while some hacks do improve fit, they can also come at the cost of the wearer's ...
When putting on or taking off a mask, handle it by the edges or straps to avoid contamination. Grace Cary via Getty Images With the highly contagious omicron variant of Covid-19 raging across the ...
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