Originally Posted by
cyccommute
It's actually the other way around. Oxygen is 'made' during the process to isolate N2 from air. N2 is more important, economically, then O2.
Well, actually in this context (the context mentioned by hotbike) you are wrong: the dude clearly stated that:
Originally Posted by
hotbike
Oxygen is compressed and extracted at Air Bases for air-crews to breathe at high altitude.
Now you hate me, I know...