Quote:
Originally Posted by ksgbobo
Being 29,000 ft+ in the air, you need oxygen to keep from passing out or blacking out. The body needs oxygen, and at the altitude, the oxygen levels are much less than what they are at sea level, hence the need of oxygen.
Thats what I think, from knowledge I gained from movies and tv shows.  |
That's one reason.... there's another very important reason and why the oxygen we breath is about 99% pure.
And by the way the oxygen is the same mix as it is at sea level..... You're almost there....