Click to open image viewer. This is an example of the U.S. Navy, Gentex MBU-23/P oxygen mask. It is designed for use in tactical aircraft for both pressure breathing and non-pressure breathing ...

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 ...

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 ...