A non-rebreather mask is a special medical device that helps provide you with oxygen in emergencies. These masks help people who can still breathe on their own but need a lot of extra oxygen.

If you've ever traveled on an airplane, you know that masks can drop down to supply oxygen in the case of an emergency. Airline oxygen masks have about a 15-minute supply and typically fall when an ...

Wearing a mask is proven by evidence to reduce the risk of coronavirus, despite common myths and misinformation that it is unsafe or ineffective.