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.

A non-rebreather mask is a medical device that helps deliver oxygen in emergency situations. It consists of a face mask connected to a reservoir bag that’s filled with a high concentration of oxygen.

Editor's note: Find the latest COVID-19 news and guidance in Medscape's Coronavirus Resource Center. Wearing a mask to protect against transmission of COVID-19 does not decrease oxygen saturation, ...

Answer: On typical airliners oxygen generators will last 10 to 14 minutes. That is more than enough time to descend to 10,000 feet or the lowest altitude above the terrain. Airplanes can descend very ...

If oxygen masks on airlines have empty bags, where is the oxygen stored? originally appeared on Quora: the knowledge sharing network where compelling questions are answered by people with unique ...