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 ...

N95, KN95, KF94, FFP2, M95i, M95c, M94k — the list is growing. If you have been shopping for high filtration masks, then this alphabet soup sounds familiar. With winter break over, COVID and other ...

One common concern about cloth face masks is the level of filtration they provide. The fabric’s mesh is often too open to filter out smaller particles such as smoke, dust, or viruses. A popular ...

A firefighter tests the seal on his N95 mask at the start of his shift in Glen Burnie, Md. With the spread of omicron, experts say to wear high-filtration respirators in public indoor spaces for the ...

Editor’s note: As we will report below, experts agree that face masks with filters — and without — do not replace or relieve the need to wash your hands and practice safe social distancing, and they ...