Too much O3 in the tent will damage plants (you will get a bunch of small brown spots if I remember correctly). If you dont want shit to smell I HIGHLY recommend one of theses: http://www.blueairproducts.com/ I have one on outgoing vent line, (I run 2000 watts medical grow) with only ONE light (out of 3) turned on, I can literally dump the exhaust into my basement (I have plumbed outside vent, but discovered this by accident when a hose disconnected and it actually smelled less since I have a dry booth there) and not smell anything (well very faint o3 smell). I actually run this way in the winter to save on heating bills. If the power goes out in my house and I dont hook up anything to a generator, in one hour my entire house (4800sqft) smells like snoop dogg came over for a pot smoking contest so its doing a serious amount of work. I also have a carbon prefilter, which worked "ok" but the added ozone made zero smell. I've had ppl painting the outside of my house a foot or 2 from the vent and nobody can tell. Ozone is amazing when used correctly(need a decently long run of duct to insure adequate contact time).Lacking any feedback, I went ahead and bought a 5,000^3 UV ozone generator and am going to bombard my plants with ozone around the clock. This will be part of a three-pronged approach using Mountain Air carbon filter, ONA time-mist dispenser, and ozone generator. If all that doesn't eliminate the odor issue, I will find another hobby.