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URL:  http://boards.fool.com/i-dont-believe-ozone-will-kill-insects-ozone-is-30378552.aspx

Subject:  Re: Ozone Treatment for Smoke Date:  11/13/2012  11:53 AM
Author:  1poorguy Number:  123047 of 129264

I don't believe ozone will kill insects. Ozone is just triatomic oxygen. It is highly oxidizing, and does react with mucus membranes (so it's not good for you to breathe, but insects likely won't care). It is also extremely unstable. According to the wiki it has a half-life of 30 minutes.

http://en.wikipedia.org/wiki/Ozone

So it should dissipate relatively quickly from your abode. So I wouldn't worry too much about it if the place is empty for a day or so after you've used the device. Even the four hours you were gone was likely enough (it should be only 1/256th the original concentration in four hours, so unless you managed to get on the order of 25000 ppb -or 25 ppm- before you shut the unit off you're below the "danger" level).

It will be cool if that takes care of your cigarette odor problem.
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