Good day,

I have asked a similar question over at the Botany section, but this time it is concerning the human body. Any help will be greatly appreciated.

The two questions I have are:

1. Under the current average earth conditions, how much oxygen do the lungs intake under normal physical conditions?

2. How much carbon dioxide do the lungs output under the same physical conditions?

Thanks for any help,

Tatsu.

From Wikepedia. Human Repiration

About 250ml/min of O2 and excrete about 200ml of CO2.
http://en.wikipedia.org/wiki/Respiratory_system#Gas_Exchange

It's a good article if you'd like to read more.