During the pandemic, the prevailing thought has been that a high-filtration mask – such as an N95, KN95 or FFP3 – should offer better protection than a surgical or fabric mask. However, recent ...
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 ...
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