My S320's elderly PO was a heavy smoker long story short. The interior was deep cleaned including headliner but there is an underlying smoke odour that bugs me.
I have heard of Ozone Generators for removing odours from car interiors. As far as I am aware this is a one time treatment? Or might it need done more than once to kill off an older odour like that?
They are a little spendy but I cant borrow or rent one so my only option would be to buy one on Ebay. Just wondering what you guys think of them generally since they appear to get used more across the pond and arent hardly heard of here at all.

I have heard of Ozone Generators for removing odours from car interiors. As far as I am aware this is a one time treatment? Or might it need done more than once to kill off an older odour like that?
They are a little spendy but I cant borrow or rent one so my only option would be to buy one on Ebay. Just wondering what you guys think of them generally since they appear to get used more across the pond and arent hardly heard of here at all.
