Fresh Air. Healthy Living.

When is a safe level of CO²?

When the CO2 level is at under 1,000 ppm it will be categorized as Good. As long as CO2 level is under 2,000 ppm it will still be categorized as normal. However, when the CO2 level is over 2,000 ppm then it might be cause headaches, sleepiness, and feeling of stuffy air.