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Why Do Fighter Pilots Wear Masks?
Masks supply oxygen, as well as provide communication and protection.
What Happens When An Aircraft Loses Cabin Pressurization?
How do pilots and passengers respond in the event of a depressurization?
Welsh Poet Removed From Avianca Flight Over CPAP Machine Confusion
The airline's policy permits respiratory assistance equipment, so why did this happen?
What Happens If Unpressurized Aircraft Fly Excessively High?
There are severe consequences for occupants of unpressurized aircraft flying excessively high without supplementary oxygen available.