Do we use most of the air we breathe in?

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Do we use most of the air we breathe in?

2007-03-21 03:22:31 · 3 answers · asked by thepinkphoenix 2 in Health ➔ Diseases & Conditions ➔ Respiratory Diseases

3 answers

No, we breath in air, of which a percentage is oxygen, i think its 22% and when we exhale we release back out 18% oxygen. Which is why mouth to mouth resuscitation works.

2007-03-21 03:28:04 · answer #1 · answered by Anonymous · 0⤊ 0⤋

no, out of the 5 liter capacity, we use only 0,5 liter to breath.
the 0,5 liter is called respiratory air. If we exhale air as hard as we can, there will always be 1 liter in the lung, it's called residue air. The air that passes through the lung in and out is 4 liter is called vital capasity

2007-03-21 03:32:51 · answer #2 · answered by ad2006miral 3 · 0⤊ 0⤋

Yes we do, and we breath out carbon dioxide.

2007-03-24 18:59:51 · answer #3 · answered by crickettmc2001 3 · 0⤊ 0⤋