Aaron Collins Mask Nerd on Twitter

NPR reports that with the especially virulent Omicron COVID-19 variant racing across the U.S., once again health authorities are urging people to mask up indoors. Yes, you've heard it all before. But given how contagious omicron is, experts say, it's seriously time to upgrade to an N95 or similar high-filtration respirator when you're in public indoor spaces. "Cloth masks are not going to cut it with omicron," says Linsey Marr, […]