@subzero - Actually, I don't have a carbon filter at all right now. That top can is exhaust and that box duct taped on the left side of the tent in the second picture with the plants is actually a cardboard & duct tape rig I made so the intake fan wasn't blowing directly on the plants, so it blows down instead. Also, checked the plants this morning around 8:00AM and the looked noticabely better. I think I may actually be on track like you said but I don't want to get my hopes too high haha. I really think that the tents were the biggest issue like you said and I wished I had done this earlier but thought it was one of those last ditch effort things that I didn't want to mess with but now I don't regret it at all even if these ones don't work out because there is no more smell in the room. In fact, with the door open it used to stink the whole house up with that smell and it is no longer there. I really appreciate all the help you've provided me with because I would have never assumed the tent would have even been a possible issue. I mean I bought the damn tents from a grow store, you'd think they wouldn't sell you something like that. I will post pictures of the plants this weekend so they should have a couple more days to recooperate and hopefully start looking better. Lastly, I'll turn the other 4 tubes on and drop the ballast down this evening when I get back home. Cheers!