How many times can I reuse my N95 mask? It depends, but you should be able to use N95s and KN95s a few times. The U.S. Centers of Disease Control and Prevention says health care workers can wear an ...

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Wildfire smoke in California has reached harmful levels, prompting officials to recommend residents remain indoors or wear a protective mask to protect against air pollution. Air in parts of ...

The U.S. Centers of Disease Control and Prevention says health care workers can wear an N95 mask up to five times. But experts say how often the average person can safely wear one will vary depending ...

Editor's note: Find the latest COVID-19 news and guidance in Medscape's Coronavirus Resource Center. Exposing contaminated N95 respirators to vaporized hydrogen peroxide (VHP) or ultraviolet (UV) ...