[WildTurkey]

Furthermore, for a plane idling and not ventilating, the CO2 buildup takes from 2-4 minutes from zero ppm to over 1000 ppm, where the passenger is aware of the decreased air quality.

Uh how do they get to ZERO ppm when the natural atmosphere is more than 200 ppm? Those airlines are really good, eh?

[Judith Anne]

Uh how do they get to ZERO ppm when the natural atmosphere is more than 200 ppm? Those airlines are really good, eh?

Experimentally. Don't post to me anymore.