[smokin5]

I bought this in May & I'm very pleased with it:
Rabbit Air BioGS 2.0 Ultra Quiet HEPA Air Purifier (SPA-550A)
Not an ozone purifier, but uses both HEPA & charcoal filters.
Bit pricey, though - I paid $370 on Amazon.
Appeal to me was long-lasting filters (supposed to go 3 years
before they need replacing), and my disappoinment with other
purifiers I tried.

Pretty effective for getting rid of the smoke smell.
And would probably work well to rid allergens, too, for those
who mentioned such a problem.