There are many anti-smoking campaigns out there are specifically focus on the smell of smoke that is absorbed by the hair and clothes of smokers. Apart from that, smoke breath is a common reason why smokers are frequently conscious. The smell of smoke is something that can be picked from miles away and it is not a nice smell for most people. The worse effect of smoking is on the mouth because it leads to foul breath. Basically, no one wants to kiss a smoker.