Originally Posted by
AllYourBaseAreB
Over pressure fed oxygen masks work fine with beards.
this will eventually be changed by a lawsuit of some sort one day
NASA begs to differ:
https://www.researchgate.net/profile...tmospheres.pdf
So does the MAYO clinic:
https://newsnetwork.mayoclinic.org/d...ks-do-not-mix/
And I personally know of an Air Force WSO who had his lip burned (fortunately not badly) when some Brit mustache Wax his girlfriend got him started to spontaneously combust while on 100% O2 in an altitude chamber once. And that was with the trifling little Hitler-like mustaches allowed by the USAF regs.
