Smoking in an Apartment/Rental

I leave a window open all the time and smoke beside it. I know others smoke in the building because I usually can smell it coming up the vents from other floors (the building we're in is a post-WWII building and is rather old). We'll have to redo some of the floors due to accidents by sick critters and will probably repaint the walls to ensure it's in the condition we rented it when we finally leave.