http://boards.cannabis.com/indoor-gr...ml#post1634834
rhizome Reviewed by rhizome on . How do i find how many cfm's i will need? i am going to be using a 400w GPMH and HPS for my second grow. i have a closet that is approx. 2' deep x 4' wide x 8' tall. How many cfm's do i need to keep this area at a good 75F??? Rating: 5