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