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.

The Centers for Disease Control and Prevention (CDC) has changed its guidelines about masks and respirators a number of times over the past two years and gave its most recent update on January 14, ...

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 ...

If you have loved ones who are immunocompromised or not yet eligible for a COVID-19 vaccine, you know the problem: They need to wear high-quality masks for safety, but the masks can be uncomfortable ...

PHILADELPHIA — 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 ...