I found a page that shows how to build an Ozone Generator from various electronic parts.. Very excellent alternative to the IonicBreeze or whatever.. this thing costs less than $70 to build. I apoligize if this is a repost. http://www.a1b2c3.com/drugs/mj011.htm
on eBay. look for ozone generator ball. they have these blue balls that are under 50 bucks. they work wonders. i had an 11 plant grow that used to make my house smell. after i got a ball, i didnt have any more worries.
How long do those balls last? Those plans require a little bit of an initial investment, but are incredibly cheap to run after that.