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 ...

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

Face masks can help slow the spread of coronavirus disease 2019 (COVID-19). Learn about mask types, which masks to use and ...

SEATTLE — Hospital workers in Washington state have been making protective medical gear out of office supplies and other run-of-the-mill materials as they deal with a severe shortage of equipment ...

Aerosol transmission: Occurs by dissemination of either airborne droplet nuclei or small particles containing the infectious agent. This can include respirable particles (mass median aerodynamic ...