Comment by a1371

It's good to keep in mind that in your home the CO2 usually ranges from 400ppm to say 2,000 ppm. Getting to something like 100,000 ppm is not really plausible for a typical home. I get how in a submarine the conditions are different.

From 9:50 onwards of this video explains what I meant: https://youtu.be/CkGDN85I29U?t=590