what we did, made a spoof (what you guys are calling a doob toob, i prefer spoof), lined the bottom of the door with a towel, had a window fan, took a hit near the window, then blew the smoke out threw the spoof into the window fan that took it outside, sprayed some axe when done and put the ceiling fan on

do not smoke joints/blunts if your trying to hide smell, i prefer a gravity bong if trying to completely hide the smell, bowls/bongs work too but smoke still escapes after you hit it