I very much doubt submarines operate that high The ISS runs at 3000-6000ppm CO2. over 7000 is dang...

shawabawa3 • today at 3:10 PM • 1 reply • view on HN

I very much doubt submarines operate that high

The ISS runs at 3000-6000ppm CO2. over 7000 is dangerous

a3w • today at 3:16 PM

over 7000 is dangerous[citation needed]

I found 3-11k as regular levels, with no impairment known of. So acclimatization can happen?

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