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 ...

STATEN ISLAND, N.Y. — It’s a normal part of daily life to wear a face mask out in public to reduce the spread of the coronavirus (COVID-19), but new strains of the deadly illness could require better ...

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 ...