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 ...

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To protect yourself from the Omicron COVID-19 variant, which is more than twice as contagious than the Delta variant, researchers, public-health experts, and infectious-disease doctors now suggest ...

If you are going to buy a face mask to protect yourself and others from COVID-19, make sure it's a three-layered mask. You might have already heard this recommendation, but researchers have now found ...

Add Yahoo as a preferred source to see more of our stories on Google. Mordkin says that with a good quality mask that has multiple layers (or when you’re double masking), filters aren’t entirely ...

Research shows that high-momentum, large-sized surrogate cough droplets can penetrate single- or double-layer surgical masks to a significant extent 1. The penetrated droplets can then break into ...

DENVER — In late December, state health officials found the first case of the B-117 coronavirus variant in Colorado. As the country races to get the vaccine in arms, doctors urge the public to double ...

If you are going to buy a face mask to protect yourself and others from COVID-19, make sure it's a three-layered mask. You might have already heard this recommendation, but researchers have now found ...