True 4x5 it's best to get your fresh air from the lowest part you can. Heat raises and cool air falls so the lower the better.
Zandor Reviewed by Zandor on . Questions are grow closet setup.... A few feedback questions on my closet grow. First off, space is about 5x5x8, but has some shelving. My question is in regards to my ventilation. I will be exhaust venting through this scrubber: http://cgi.ebay.com/CARBON-AIR-SCRUBBER-ACTIVATED-CHARCOAL-FILTER-PURIFIER_W0QQitemZ7773385678QQihZ018QQcategoryZ43555QQssPageNameZWDVWQQrdZ1QQcmdZViewItem I will be hanging this unit and will have ducting attached which will vent through the closet cieling into my attic whic has an attic fan. My Rating: 5