Flying and using machine on a flight? Can it help SpO2 at high altitude?

[Matt00926]

a battery operated portable oxygen concentrator will be more effective and easier to use...but of course you'd have to rent or buy one. cpap would be beneficial if you happened to fall asleep on the plane, but otherwise, I don't think it would be as effective. best practices are probably to avoid all caffeine and alcohol that day, and to stay reasonably hydrated. getting up to use the bathroom is probably helpful in avoiding clots; i suppose wearing compression socks may also help in that regard. wearing loose fitting clothing helps as well.