Oh I'm way not worried about that I have 3 10 inch exhaust fans hhoked up to giant filters pulling air from outside ita not a sealed room fresh air somes in and goes out. The ACs are for keeping the climate where I want them as I am running 2 times the needed light for the space plus I deal with -20 through 80 degrees at the peak so In my cold climate my acs hardly even get used except in the summer and to do short regulated bursts, in the winter I gotta keep the back side of the exhaust box heated so theh dont freeze lol but most of that's done with the exhausted air from the 3 10 inchers. So with that being said and the fact it would be a freaking nightmare to raise or lower any lights in there, I think I'll just leave them alone