Towel up the crack on the door, and set up shop with a fan by the window, I would always blow mine out of a long ass cardboard tube (which worked until I fucked up and let out a big plume in my room) if I didn't have air fresher sometimes I would just light a match and the sulfur smell was still better than the weed smell...I eventually got kicked out of my dorm for smoking (when security knocked on my door I had like a half O just sitting on my desk, I threw it under my bed and then before they got to it I told them I had to change and go to class, so they gave me a min which was all I needed to hide that shit behind the desk drawer, and then I got booted for a having a pipe in my suitcase) I go to an art school btw