Right now my ventalation is a little ghetto a recirculating fan moving air around in the closet and a household room fan to exhaust air out the closet , soon the ventalation system is going to be updated with a cooltube, and a inline fan.

The fan im getting is gonna be Hi-Tech Garden Supply

Nice and cheap and will do the job,and Ive ordered from them before there quick and stealth.

Its fine to have a fan with higher cfm expessially if you plan on using something like a carbon filter (to minimize smell) thats going to lower the cfm rating. Its always better to have a high cfm rating.
r00tdoctor Reviewed by r00tdoctor on . Help me find a fan. How much CFM do I need? OK my grow area is W 4ft x L 6ft x H7ft .... how much CFM do I need? and when I find the cfm do I buy 2 fans? because I would like to buy a fan off insidesun.com and I nottice they sell fans like ex: inline fan 200 cfm or whatever... so if i needed 200 cfm I would buy 2 200 cfm fans to ventilate my room? Thanks if you could help Rating: 5