Talk:The Ark/@comment-24946020-20160506023044/@comment-28398720-20160815015802

What you are thinking about is catastrophic decompression due to pressure differential. Which is an issue in Planes, Subs and Soda cans ;) If you leak all the Air from the Ark that wouldn't be an issue, in fact it would be much more safer (less internal pressure, less fire hazard, less metal corrosion I think).

Also when we breath we don't use "air", if you breath in and out into a balloon won't create a vacuum, you just consume oxygen and release CO2 instead.