A couple of lines from the article
Under the N95 versus KN95 - Both masks cover your nose and mouth. N95 masks loop around your head and neck, and many KN95 masks loop around your ears.
Under the N95 versus Surgical N95 Masks - There are two types of N95 masks
A general observation - this is a page of information on one topic of many regarding COVID, it is an overwhelming amount of information on top of information overload and is one sign of just how ####ed up the response to COVID is.
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