If my closet is 44 cubic feet, with a 270 CFM fan pulling dirty air from the top through a 4'' duct, up to a carbon scrubber... (Bodom's DIY) How big should my passive intake be? I have 1 2'' 90 degree PVC at the bottom so far....

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norkali Reviewed by norkali on . Passive intake..... If my closet is 44 cubic feet, with a 270 CFM fan pulling dirty air from the top through a 4'' duct, up to a carbon scrubber... (Bodom's DIY) How big should my passive intake be? I have 1 2'' 90 degree PVC at the bottom so far.... Pictures Rating: 5