Hey you use CO2 bags right? I'm buying some and won't it be a waist if my exhaust fan is running...it will just pull it right out the window...I don't have an exhaust fan in my veg tent...it really doesn't need one, cause it stays where I need it...but I'm getting the one anyway for it, but how do you use those or the best way???? I think they need it cause of this ac unit is pulling alot of air out the room....also do you keep your tent somewhat sealed or do you keep the air vents open??? Let me know bro I'd appreciate it...thanks...