How many cfm

Was wondering if anyone knows how many cfm’s I will need for a 4’x8’x80" grow tent

For future reference:
4 x 8 x 6.5 = 208 cubic feet
208\5 = 41.6

So somewhere around 40 - 45 cfm will clear the tent in 5 minutes…

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Alit lol

Peace and stay safe

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My tent is this size and I use (2) 8" Infinity fans. One for intake, one for exhaust. Works like a dream.

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I have a 6" infinity in mine. My grow area is cooler so it works. If it needs extra help, I have Hurricane fan to feed air in.

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Totally agree with this. To add to it, things like bends in the ducting, flex pipe, filters, silencers, etc slow air flow so you might want a little more to compensate for that.

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if you want a easy way, go to hydrobuilders site look up the tent size it tells you suggested lighting cfm plant number etc.

Good knowledge, thanks everyone

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