Comment by scotty79

3 years ago

Range given for concentration of CO2 on exhaled air is 4-5%

So it looks like it could be 25% difference at most.

5 comments

scotty79

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maxerickson  3 years ago

I doubt the 4-5% you saw is a first principle of breathing.

  • scotty79  3 years ago

    Why not? CO2 levels in blood must be tightly controlled. It probably can't get twice as high as usual.

    If there's already 4% of CO2 in the air around you it's an immediate danger. While you can spend 10 minutes in 3%. If your body could bump up CO2 in exhaled air from 4% to 8% then you'd probably have bo problem surviving in air thay contains 4%.