I live in a situation where I can't smoke in the house. I do anyway because it's #1 convenient, and #2 very easy to get away with since I have a window exhaust fan that I bought from Walmart. It has forward and reverse and 3 speeds with a remote control for $30. It sucks so hard that the door is pulled shut tight and any trace is sucked out the window. I'd advise this, and a spray can of ozium.