Teen becomming concerned with second hand smoke?

Hey everyone. I am a 19 year old male who is an ex-smoker. Now I know what they say about being an ex-smoker (hypocrits) but I might be an exception. I smoked for about 7 years, thank god I was able to quit cold turkey 10 months ago. I have ALWAYS been surrounded by smokers/lived with them my whole life. Anyways, now that I dont smoke and avoid it as much as possible, I realize how rotten they are to smell. So my good for nothing drunk grandfather always sits in the kitchen, reads/listens to music/does crosswords, and smokes. My room is directly above it and it smells just as bad as if you were in the same room, my room is the only place I can "get away" from everything and it is starting to give me a daily cough/burning nose again now that hes smoking inside again in the kitchen (usually outside in the summer) and it is making me insanely mad. He has no concideration for me knowing its been giving me a lump in the throat/cough. It makes me so mad I want to hook him with such a haymaker across his face his heads spins - ofcourse that isnt what im going to do, but I feel like it, aside from him being my grandfather I hate people who disrespect, and I know youre gonna say "well its his house" yes, it is. But who would care that its irrating his grandson? what can I do/any feedback?