Yo Quickset...so is that mounted OUTSIDE of your room? Do you have the fan inside the room pulling that room air thru the wall (ducting), into the filter, then out the filter into (what?). I'm interested in using somethin like this in a 2x5x7 closet with 400w aircooled HPS. I can vent directly into the attic and or out of the attic (thru roof). I'm just confused as to if I can use this method, but instead of forcing air through it, having air PULLED through it, via a fan (will a 256 booster in-line [I think 160cfm normal) or 424cfm in-line work?).

Basically, I want air to go through this path:

1. Room Odor
2. DIY Carbon Filter
(ducting if necessary)
3. Aircooled Hood
(duct if necessary)
4. 1 Fan (mounted in attic)
5. More ducting (if necessary) to top of attic vent.

I would REALLY like to keep the fans in the attic if at all possible...But, Is there a better way to do this? Also note, I probably will use passive intakes..as I don't really have a way to directly intake fresher air. I was thinkin pvc piping would work fine bottom of closet). I have 2 rooms side by side, both 2x5x7 or 2x5x8. I'm settin up seperate veg/flower rooms. Could I use 1 424 cfm fan to suck air through the flower room (as explained above) AND from the same size veg room with 6x24w t5 ho flouros? Maybe if I add a booster to the veg side it can be vented all in 1 system? That would be my ideal set up.

Thanks in advance for any advice!

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