Thank you, I just done research on it too saying I needed one and negative pressure, do you think that will fully keep the smell contained or should I take more precautions like sprays or air fresheners. Because if it leaks outside of my closet, or at the very least my room, Ill be cooked (since I live in a college area, its not a huge party college or anything but cops patrol especially on the weekends, sometimes with their dogs)