Every day, N95, KN95, KF94, and surgical face masks protect millions of people from smoke, dust, and other particulates, as well as germs that can cause serious illness. These masks act like a bouncer ...
With the omicron variant of COVID-19 spreading more rapidly than previous variants, experts are advising people to ditch the cloth masks and find KN95s or N95s to protect themselves and others from ...
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