Just mount it outside and above your growdrobe. Blow your hot air through it. No problems. That is the most common method. I don't see the point in having the filter exhaust back into the growroom. You would be recycling heat into the box. Also you want that fresh(hot) air from the filter to go into the surrounding area to avoid stink leakage.
Jah Bless
GM
Legalize marijuana...
...it could build up a failing economy -Tosh
weed gets you through times of no money better than money gets you through times of no weed
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