Let's try this: What air filter are you using?

http://www.rabbitair.com/minusa2-spa...-purifier.aspx

Yes, if you go to the site listed above, they review two Rabbit units. Not bad, for a 200sqf room, but mine's twice the size. The site rates them higher, but I want 7-8 turnovers per hour.

I agree about the UV on smoke, as I have learned more overnight. I got bad info from a filter salesman on the UV. Carbon is what will filter out the smoke. I knew that smoke actually attaches itself to bulbs rather quickly, so I guess it makes sense to remove the UV from the equation.