How long you can wear your N95, according to experts
You're ready to swap your old cloth masks for N95s as some experts recommend, but the higher price tag and two little words -- "single use" -- are giving you pause. How long can you really wear an N95 and still protect yourself and others from Covid-19 risk?
"I wear mine for a week," said Linsey Marr, a professor of civil and environmental engineering at Virginia Tech.
An N95 mask's material and filtration ability aren't "going to degrade unless you physically rub it or poke holes in it," Marr said. "You'd...