I don't smell the vapor, I love the smell of the MZ tubes before I soak them in iso tho. I just wish there was an air spray that smelled like that (and while they are at it, make a new car smell one too!). I'm in a house so I dont worry about others smelling it. Yes true after that first hit it doesn't smell the same and I hate the smell of the Bong if my roommate hasn't cleaned it in a while.