need your help

o.k my grow spot is really small and i am thinkin growin auto aks myspace is 22ins(D) 23(W)ins 64(H)ins and them ak's get really smelly and was planing on using a pc fan put dont no which 1 would be best for my space for air in and out will be making my own carbonfilter how much CFM wud i need thanks for any and all help

ny1....................

According to my math you've got less than 20 cubic feet. In that small of a space, any 4 inch pc fan should provide enough airflow to keep your plants breathing happily. You may want to add a second fan to help cool whatever lights you're using.

thanks for the help yeah i was ganna get 2 4in fans for in and out ganna use 150hps for flowering and cfls for veg...the fans that i have been looking at havesomething like 49cfm so they should do a good job