If you smoke then it will not be a bother. But for those who do not smoke, suffer from COPD, other ailments or just the smell disgusts then it is a problem. I just got off the elevator in my buidling and this guy who just moved in wreaked of cigarette smoke because he was at the designated smoking area fo the building. I have had allergies for most of my life and the two things that bother me the most are cigarette smoke and cannabis smoke.