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Free, good friend

well it is active carbon, and it is placed in front of the exhaust fans should work like any other active carbon filter. there are various threads on hear about DIY active carbon filters.

bump Any feedback?

ohh and add some white walls to it.

should work good, im using a 600ma (.6A), 12vdc power supply to power two 80mm fans and two 120mm fans.

temps are right at 70 and its been about 1 hour

still have some cleaning up to do with the wiring and need to fill the screen all the way up with active carbon, but just doing some testing for now But let me know what ya think

using 2 fans for the cool tube with a 70w hps lookin at adding some cfls or possibly leds have 2 80cfm fans exhausting the grow area with a active carbon between 2 screens looking to do some LST with some autoflower seeds gunna do about one plant maybe two just for little bit of personal...