well, room is almost done and not to shabby. I put in a 2nd vent in bloom room so there are 2 a/c vent in a 8x11 room with a divider cutting it almost in half. on each vent i put a "vent booster" with a 12" fan mounted on the wall a foot or so below the a/c duct and helper. this just pulls cool air down and circulates in each room seperately. In both the bloom and veg room right above the 1000w lights high as possible, is a exhaust fan ducted to the outside through a carbon filter. I used regular kitchen/bath exhaust fans flowing through a "y" to the carbon filter, these fans are nice because they have a built-in" flapper, that shuts when fans is off, this way if one is on and one is off, you wont be exhausting just into the other room! Now I also use a 4" high velocity to cool my lights, it pulls cool air from the a/c and vents outside through a carbon filter also. I get my Babies tonight so ill let ya know what my temps are running after a get a light on. a couple months more before both light are running. I took pics so ill be posting them soon. Thanks for all the help, burn 1 for me!