CO2 - how to?

[turtle420]

Im not sure about what turtle was saying about 1500PPM killing you, he could be right, but i know that your little mixture wont produce that much CO2 anyways.

Yeah, I searched, and toxic levels of CO2 are 200,000 ppm. So please, Sativagrowing and everybody else can feel free to stick their heads inside their grow rooms when the CO2 is @ 1800ppm...