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 ...

Canadians should now be wearing three-layer masks, including a middle filter layer, according to new recommendations announced by chief public health officer Dr. Theresa Tam on November 3. The ...

Health experts have said it for months: wearing a mask is simply one tool in the fight against COVID-19. But, as new variants emerge, some suggest wearing just one mask may not be enough. In the ...