I run a 6" HO CanFan that blows in the mid-200cfm range. It is adequate to ventilate a 6x6x6 space that is naturally cool but contains 2k total of HPS. Your individual needs may vary, but you can't skimp of a fan if you are going to run a carbon filter and that would be an excellent choice. For a filter, I'm running an odorsok, and have smell still. You will probably want something a little burlier in an apartment.
stinkyattic Reviewed by stinkyattic on . Cooling in an apartment closet Ok, I know that growing in an apartment is risky as hell, but let's face it, what choice do I have (aside from gurrilla, and when its 110 here in the summer, thats far from ideal). In any event, I have a grow room, in my closet that measures approx 51" in width by 2.5' deep. It is seperated into two sides (flowering, veg) both with 2 24" el cheapo floro lights. (one side has better bulbs (the ones that are pinkish...which brings up the question of which side should those be on)). On the Rating: 5