I am the oldest of five sibs. Up until he stopped, my Dad had a cigar, cig, or pipe in his mouth. (not all at once). Three out of five of his kids smoke, although I think one of my sister stopped. I smoke and don't see me stopping. My dad only stopped because he got very ill with viral pneumonia. Tried to tell it was the easyest thing he ever did. Guess he thought I didn't remember.
How about trying an air filter?