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 ...

We're all getting used to wearing face coverings while out and about, and you may have noticed that several masks have a small slot to place a filter for extra protection. Adding a filter in between ...

BERLIN — As the wave of coronavirus infections broke over Europe in March, causing reserves of medical supplies to disappear, German authorities made a nationwide appeal: More safety masks were ...

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 ...