but that's not always gonna cool my room down, If I didn't have an ac they it would be like 110 degrees in there and thats with a fan bringing fresh air in. I failed to mention that I do have one but I don't find it that effective, maybe I'll try it just when the lights are off. I have a total environmental controller so I get to see exact levels of temp, rh and co2 ppm. when having the fan on bringing fresh air in from outside the levels of co2 only get to around 180 ppm and my temps aren't affected at all so I just stuck to ac with supplemental co2 but am gonna leave my oreck air purifier on full blast 24\7
I understand, What I would do with the total controller is set it up so that when the temps inside the room get to around 90 degrees it will activate a fan to vent out, as this is taking place, have the co2 emitter shut off during the venting process, if you have an inlet even a small 1/4 to 1/2 inch gap under doors can allow enough air in,keep oscillating fan going 24/7 on low across plants. This is all you really need to let the plants transpiration take place, and it will save appliances,electricity and the lifespan of a/c.
Why set temp to 90 degrees because plants will use the co2 more efficiently at higher temperatures.
If you cant shut co2 emitter off during exchange cycle leave it on, co2 is heavier than o2 and will sink to bottom of room so you wont lose too much.
my 2 cents here! If you live in or around any American city the average ppm for co2 are well above 300ppm and if you are only tending 2 to 6 plants co2 is a waste of energy and resources it can help in high temperature situations and in large controlled commercial grows, e.g. go to a hot house tomatoes operation see all principles stated here in practice!
Good luck I hope this helps.