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

(Nanowerk Spotlight) Triggered by the COVID-19 pandemic, the surge in demand for surgical masks and respirators has led to a global manufacturing rush. However, not all mask filter materials are ...

The masks are embedded with seeds. MOSCOW -- The face mask has become a symbol of the pandemic. Over a year into the crisis, millions of people around the world still won't leave home without one.