Im in the process of setting up a space for a Closed Loop Grow room The area is 10x5x7 (length x width x height) My equipment 2-Hydrogarm 600 water air cooled hoods 2-600 watt HPS and MH bulbs AC 9,000 BTU Ductless Mini Split Heat Pump air Conditioner Wall Mount Cap Co2 Sniffer 20 lbs Co2 tan Carbon Scrubber with 440 cfm exhaust fan two 8 inch oscillating fans the closed environment is the way to go IF you can dial in EVERYTHING.The thing that worries me the most is controlling the humidity because i know as the plants grow they will be transpiring a lot of water and my humidity will rise. So i know i need to invest in a quality Dehumidifier. Question 1: Does anyone recommend a good dehumidifier? Timing is my next question. The AC unit i have is controlled and because its a Mini split it does not take in air or exhaust air. It simply circulates the hot air in the room and turns it into cold Air. Right? Since the Ac is controlled according to the instructions i set it at my desired temperature and that is it. Question 2: If im running my Co2 at 1000 PPM and my temps at 75 degrees, as the ac unit is running am I at risk loosing Co2 in the grow room as the air is passed through the mini split? Can anyone drop some info on me and set me straight about the perfect way to set up a sealed room....I got all the shit i just need to be pointed inthe right direction....