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ventilation for grow box


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#1
heavyhitter25

heavyhitter25

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is it ok I use a small intake take fan and a larger exhaust fanfor the grow box ...

or should i do the opposite

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#2
frankwest

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From what I have read, you need double the intake as the exhaust, so if you have a 4" fan on exhaust you want 2 4" holes for intake, also don't put fans on intake holes, the negative pressure will keep the smell out.

#3
toastybiz

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Big fan on the exhaust. Small or no fan on the intake.

#4
heavyhitter25

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ight thanks.. big exaaust smaller intake


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