I was planning to use a 4" centrifugal fan for my hood heat exhaust. Should this be enough to keep negative pressure inside to maintain pulling fresh air in if I create an intake vent?

I also wanted to find out what fan would be the quietest 4" fan I could use?

The size of the tent is 2'3"w x 1'10"l x 5'11"h


How big of a carbon filter would be good enough to withstand 2-3 plants? I might just make my own.....

To sum it all up:

The 4" ducting will go from the 400w hood to the tent port, outside to the 4" centrifugal fan, ducting to the carbon filter. This will keep the heat and smell at bay, while also creating negative pressure inside the tent to pull in AC cooled fresh air in the closet.

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