As mandatory face coverings become more and more common, keep in mind, some are better at protecting from viruses than others. When issuing their face covering guidelines, San Francisco specifically ...

Two years into the COVID-19 pandemic, the public debate on masks is as heated as ever—especially in Philadelphia, which earned national attention for once again requiring masks in indoor public spaces ...

N95 and KN95 masks are effective against inhaling wildfire smoke, according to an expert A Canadian respirologist said simple cloth masks and other cheap alternatives are not effective New York City ...

The authors reviewed existing evidence for filtration efficiency of cloth masks vs medical masks, and they found that cloth masks fared surprisingly well. Layers matter, as does the material used.

Add Yahoo as a preferred source to see more of our stories on Google. While there are still many uncertainties surrounding the COVID-19 pandemic, there is one thing that remains indisputable: Masks ...

People on public transport are wearing face coverings again, while hospitals are asking staff and patients to mask up. Not just a blast of nostalgia for 2020, it’s due to a strain of flu rampaging ...