Non-rebreather masks are used to deliver oxygen therapy to people who require high-concentration oxygen but aren’t in need of breathing assistance. They’re considered low-flow oxygen delivery systems.

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, ...

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 ...

Doctors and other healthcare workers are taking to Twitter to show that their blood oxygen levels are completely normal while wearing masks. As compulsory mask-wearing laws become more common across ...

Yes, we know that flying is typically considered the safest way to travel. This doesn't change the fact that we're hurtling along tens of thousands of feet in the air, in a vehicle that still seems ...

In recent months, masks have become a highly polarizing topic. Despite intense debates online, and the sometimes violent conflicts that erupt in public about mask requirements, the science behind mask ...