NC for this. My neighbour's house stinks, I mean absolutely reeks, of air freshner. I don't know which one, plug ins or whatever, but it's that horrible, sickly Fabrese sort of synthetic smell. The problem is that when their patio doors are open it's very strong in our garden as well and comes into our house. I can smell it in our living room where it's traveled in via the kitchen. It also comes in through the open windows. It's very very strong. Goodness knows what it's like to actually live in their house.. I'd feel sick all the time.
I'm not a massive fan of air freshner anyway (or theirs, tbh, they've very noisy and inconsiderate but that's another story) but I really hate not being able to enjoy sitting on the patio and smelling my flowers and well, fresh air, to be honest. But, you can't do anything about the smell of someone's house, can you?