The man upstairs

I have a problem and I'm not really sure what to do about it. The guy who lives in the apartment above us smokes in his apartment. That's fine, it's his business not mine, I don't know if we're allowed to smoke in the building, but I know we're not allowed to have dogs and he has one. Like I said, that's his business not mine. But there are days when he's home that he smokes so much the smell comes through the floor and half of our apartment smells like Cigarettes. Now it's my business. I do not want my apartment or my stuff smelling like we smoke, and I definitely do not want us breathing in his nicotine. So now what? Do I confront him, do I confront the landlord, do I just ignore it? If I confront someone what do I say? I can't keep him from smoking in his apartment, that's his home. He should be able to do what he wants just like I should be able to do what I want with my home. But what happens when him doing what he wants affects me doing what I want? that is the big question in life, the question behind numerous wars and arguments. I know life wont always be the way I want it but there has to be something to keep me from smelling smoke all day. I don't want to be the tenant that complains about everything and I will admit in our previous apartment I complained a lot about stupid things. I've tried to only mention the important things to our property managers here, things like leaky sinks and broken kitchen lights. It's so hard to stay content when you want so much more.