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 ...

Researchers have developed a membrane that can be attached to a regular N95 mask and replaced when needed. The filter has a smaller pore size than normal N95 masks, potentially blocking more virus ...

Add Yahoo as a preferred source to see more of our stories on Google. To meet CDC guidelines, the face coverings should allow you to breathe without restriction, include multiple layers of fabric, fit ...

Which filter inserts for masks are best? Cloth masks typically are the most affordable options for staying healthy and safe in crowded public settings because you can wash them and repeatedly wear ...