There are different types of masks to protect the body, including surgical or cloth masks, N95 mask, N99 mask ... with an intact seal and an expiratory valve to breathe out carbon dioxide ...

gets one new N95 face mask. They’re meant to be used once and then thrown away, but that one mask — made of a flexible fiber and fitted with a small filter valve — has to last her for a full ...

There are specific types of respirators for different scenarios, including: Particulate respirators protect health care workers Respirators, like the commonly found N95 face masks, help protect ...