Fans needed for Grow Room

RyanBroo

Member
What sort of circulation setup should I use for a 3x3x7 growbox (attaching carbon filter as well)? I figured I needed about 250cfm fan's, So should I get 4 115 cfm fans (2 in, 2 out) or what sort of setup should I use?
 

FASTGLH

Member
I would go with 2 pushing and 2 pulling.i would also set them offset and not directly across from each other, that way it can cause movement.
 
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