Sooo my room is next to my dads room.

I know he smokes sometimes, which is okay…

Like he can do whatever he wants. But soooo many times in the past few months he’s been smoking inside (that’s what it smells like @ least) @ night when im trying to sleep & I can smell it all the way into my room. It smells rlly rlly bad (idk if it’s just a cigarette or if he’s smoking something else). But I don’t wanna breathe it in (+ I have asthma which makes it worse…).

I can’t talk to my dad or tell him to stop, he always gets mad for no reason all the time. He’s very special & he’d get mad if I told him what to do / not to do (even if I’d ask him to stop smoking inside in a nice way). Is there anything I can do to stop the smell from coming into my room / anything else I can do?