Our grow room is 8x7, we are currently running 3 1000 watt LED Grow lights. We purchased a new Co2 Bucket on Amazon that is supposed to work like those exhale bag, it allegedly works for a year and covers an 8x8 grow space. We will see how that goes! It definitely looks a lot better than the exhale bags! We also got a 12 inch hurricane wall mounted fan and placed the co2 bucket right a foot above the fan and the fan is blowing lightly on all of the plants. (Edit: The Plants are already pointed in an upward direction from the co2 bucket after only a few hours)