Well 16 hours later and its working miracles....there is absolutely ZERO smell in the room and even in the closet where the plants are....I don't even have the UV-c light running either because I was unsure of the blue light and didn't have any duct tape to block it. So if you got the extra 160 bucks its definitely worth it!!! One of the best buys for my grow room yet.....can actually say the fan and carbon filter I bought from the hydro store can go in the trash.