gfreeman
Well-Known Member
i say nay to that. and post this.Not compared to the levels people shoot for. Fresh air has about 393 ppm, the general level growers use is 1,500 ppm. CO2 is one of the big things hvac guys use when looking at indoor air quality.
Properly ventilated buildings should have carbon dioxide levels between 600ppm and 1,000 ppm, with a floor or building average of 800 ppm or less. If average carbon dioxide levels within a building are maintained at less than 800 ppm, with appropriate temperature and humidity levels, complaints about indoor air quality should be minimized. If carbon dioxide levels are greater than 1,000 ppm, complaints may occur. Therefore, 1,000 ppm should be used as a guideline for improving ventilation. If a building exceeds this guideline, it should NOT be interpreted as a hazardous or life-threatening situation. An elevated carbon dioxide level is only an indication of an inadequate amount of outside air being brought into a building. The level cited in this document should only be used as a guideline to determine the amount of fresh outside air entering a building.