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

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

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 ...

Masks work against not only COVID-19 but also the flu, RSV, and other respiratory viruses. We should still be using them ...

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 ...