A self-proclaimed “mask nerd” warns that not all face coverings are alike, but the best ones work wonders. His unmasking advice hits as cloth coverings are out and CDC-recommended respirators are in.
Amid a shortage of medical-grade masks, federal guidelines now recommend everyone wear face coverings out in public. Here's ...
The spread of the more transmissible Omicron variant has prompted more public health experts to recommend wearing N95 face masks instead of cloth or surgical face coverings if possible. (Photo by Mark ...
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