I use a both a carbon filter and ozone (O3). The filter cost me $68 and the ozone about $150. No smells period. My set up consists of a pvc structure surrounded with panda film the black on one side white on the other stuff. I have a 400 watt hps with a 6" inline fan sucking the hot stinky air from the room and into the carbon filter. My set up is 24" x 35" x 60". It also has a 4" incline fan bringing cool fresh air into the room from a window. The chamber is in my closet and the duct work is discrete. I have 8 skunk#1 plants that look incredible under the super hortilux 400 watt bulb.
Wish i knew how to post threads with pics on here...any suggestions?