Indoor Air intake question

[The420smoker]

Are you talking about suckling thru the charcoal filter outside the tent in taking into the grow area? I guess I'm not understanding how you will make the intake bigger if the fan is suckling thru the charcoal filter

I use 2 6 inch fans and carbon filters. I filter air into the tents(2 10x10 joined together) so no molds or fungus get in and one inside the tent pulling air out scrubbing the smell. 1 in and 1 out has kept my humidity down and temps perfect.
I am no pro but would recommend using 2 fans and filters. Bought 500cfm 6" fan/filter combo for $170