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i would like to know what cfm i would need for the intake and exhaust fan for a 2mx2mx2m grow tent. i heard that you need more cfm output for the exhaust than the intake.

im looking at purchasing a 2x2x2 grow tent , i need to know what size intake and exhaust fans ill need. and also what size carbon filter , 4 the vegetative stage ill be using cfl lights and ill be using 600w hps for the flowering stage , also would the size of the fans be the same if i chose to...