looks that way to me. You will want twice the capacity for passive intake as you have for outflow. In this case, because you are using the room air to cool the light as well you will want twice the passive intake as what both fans draw out. You have the right idea, just keep improving like you are. VV

Man i can relate because i am growing in a room 98in tall(8ft 2'') and 43 1/2 inches wide(3ft 7'') every corner and when i get to the flowering stage i'm gonna use a fan for humidity circulation and ventilation as well.

does that ONA gel shit really work? what else can i do to just cover the smell up? i grow in a closet too, im like 4feet from the window and i just keep a fan running on them pointed at the window. i havnt had any problems yet but now they started flowering and its starting to become a problem.

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but how many plant are there? i am growing in a closet to and use one door open and the other closed to vent i have the fan sittinjg right out side the closet should i get a fan in there? and that ona do you think that would work for 6 female if i boguth like four of them? because for emergency i got odor assiain right now it works good but need more long term can you help?

Go to ebay and get an activated carbon filter and hook that up to the intake part of your hood. The air is filtered, goes over the hood, and happily exits the grow room eliminating both heat and smell.

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with that intake thing at the hood can some one help?