If you only have a single-layer or loose-fitting mask, it may be smart to wear two at once. To double up, wear one cloth mask over another, or wear a cloth mask over a surgical mask. Experts have long ...

With medical grade masks still in short supply and badly needed at hospitals and other care centers, many Americans have turned to a variety of other options to help slow the spread of COVID-19, from ...

Researchers have shown that three-layered surgical masks are more effective than single or double-layered masks at stopping large droplets from a cough or sneeze from penetrating through the mask. If ...