After 6 years of smoking in my car I quit (smoking in my car) in March when I discovered the Joye 510. I waited a few months to make sure I wouldn't relapse even on long road trips, then I went ahead and had my car detailed (eg steam clean upholstery and carpets). Now every last trace of cigarette smell is gone. It's amazing! I thought I would always be stuck with a car that stunk of cigs. Even non-smokers can't smell the faintest whiff of nasty smoke.