Lets talk Ozone Air Purifiers

[JDTexan]

So I have been smoking in my outside home office for about a year now and I would like to invest in an ozone air purifier that I can run overnight to help "clean" the old smoke smell. I see the Csonka for sale at most cigar stores and online sites but would like to know who has used one and what brand is the one to buy. My office is roughly 500 sq feet so I don't need some badass commercial unit. I have read that some people hate the way it makes the room smell, so any comments good or bad are welcome, as I explore this option.

Thanks for all the help!