grow tent exhaust help.....

have a secret jardin 150...
its 5x5x7

gonna run a air cooled hood, thinking about the giant hydrofarm raptor, or magnum xxxl as it would cover the area nicely.....

400 watt for vegging, 600 watt for flower....

how many fans would i need.....would like to use a phresh carbon filter as there lightweight.

also, how many CFM's.

so yea, anyhow, what would you reccomend, would like to keep the temps down as much as possible.

I have the same tent and use a 600w hps in a sunleaves sunspot6 hood for flowering. I use an inline duct fan for the hood: top right side duct opening --> ducting --> inline fan --> sunspot6 hood --> ducting --> left side duct opening. Then at the bottom right, I have an inline duct fan sucking in cool air from my ac. In the back right top duct opening, I'm using a can33 combo filter/fan and blowing out filtered air. My tent stays about 70 degrees with 50% humidity. Hope that helped.

you want to use 250cfm min depending on ambient temps. i would get a 6in 440cfm from active air... cost 70bucks.