My little closet

I search on ebay but don't find anything under 100$ with a fan of 150cfm

$45 for the scrubber, not the fan, LOL. Direct links are generally discouraged here, but since you seem to be having trouble finding what you need:

eBay Store - FOOTHILL FILTERS: CARBON SCRUBBER, UNWANTED ODORS, HYDROPONICS

There are other similar stores/sellers. I haven't ordered from this guy, so this isn't a personal endorsement just an example.

His scrubber filters are $40 for 4x12. He has 6" models with fans attached for under $100. But those are intended for unventilated spaces. What you want is a filter, and a separate blower fan to attach to it. Hydrofarm 60CFM model typically goes for around $65-70, their 95 CFM model for $70-80 and their 180 CFM model for around $85 or so.

If you can't deal with the $100 for the filter and the fan, make the pet-store DIY scrubber and use radio shack cooling fans or inline duct booster fans to move air through it.
 
Neither. Like I said, buy a 4x12 filter, and a blower fan. Cut an exhaust hole, mount the blower's exhaust to the hole, and the filter to the blower fan's intake flange.
 
why are you making it MORE humid i thought you want dry air so they leaves can breath more moisture means more resin on the leaves which means they leaves cant breath i might be wrong but i dont think so.
 
That's an interesting find, and it should work--although that's also a lot of CFM just to put through a hood. And that's also a lot of amperage @ 12VDC. Do you have a 4.5 amp 12V power supply?

I'm confused as to whether you're asking questions about your hood, or a filtered exhaust for the chamber. The hood can be on its own ventilation circuit and shouldn't need to be odor-controlled if it has separate intake/exhaust and all sealed up well.
 
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