Hey, I notice alot of people here are always talking about complex carbon filter setups and stuff. Someone told me about odour killing lights and I tried them out, and they are amazing, for 20$ you can get 2 bulbs and each bulb is enough to kill ALL odours in a 10'x10' room. Just thought I'd let y'all know that I got some to try them out, and they really work well, I put one in my grow room, and another outside my grow room, because you can't have the light on when you're in the dark cycle obviously. Also they last 2-3 years or so, so you don't have to worry about replacing your filters at all.