How often can you reuse KN95 or N95 masks — and how do you safely do it? What to know

Health experts have recommended switching to N95 or KN95 face masks as the omicron coronavirus variant — which transmits and evades COVID-19 vaccines more easily than past strains — spreads throughout the United States.

But can these higher-quality masks be used more than once?

Some experts say yes — with limitations — as long as it’s done safely. Here’s what to know: