P95 and N95 are rating classifiers for masks manufactured to keep people from inhaling dust and other small particles in unsafe environments.

As health officials scramble to minimize spread of the highly contagious Omicron variant, many experts have recommended that people switch from cloth or surgical masks to more-protective N95 and KN95 ...

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 ...

The shortage of personal protective equipment — specifically those N95 masks — continues to be a struggle for many healthcare workers. But an emergency medicine doctor in Orange County, California, ...

Amid a shortage of medical-grade masks, federal guidelines now recommend everyone wear face coverings out in public. Here's ...

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) ...

The air in Delhi has turned grey, heavy and hazardous once again. With the Air Quality Index (AQI) soaring past 400 and even entering the “hazardous” category in many zones, ordinary walks or commutes ...