Definitely get a carbon filter. http://www.amazon.com/Apollo-Horticulture-AH-IF4-CF4/dp/B01A30692O/ref=sr_1_4?s=lawn-garden&ie=UTF8&qid=1460834547&sr=1-4&keywords=carbon+filter+and+fan Just set this up next to them and you wont smell a thing. the fans can be loud but its better than having the...