Sure they can. I am a smoker and go to great lengths to conceal that fact from the deer)). I do not smoke in the house, wife would kill me!!! I do not smoke after I shower for a hunt. My hunting clothes are always washed and kept in sealed bags.

Deer can smell human body odor so why would you think they can not smell cigarette smoke? It gets on your clothes and smells bad. IMHO cigarette smoke is a foreign odor to them. I can not remember the last time I saw a buck walk by with a Marlboro sticking out of his mouth)))) LoL

Dave