I almost feel like I should post this seperately, but since the subject came up: I don't recommend the use of ozone generating devices. Ozone is a indoor air pollutant and irritant that should be stayed away from. There are other devices and building systems that can help to reduce exposure to chemicals or situations that lead to off-gasing. For some unbiased information on ozone see a few sites: http://www.arb.ca.gov
and the EPA's http://www.epa.gov/03healthtraining.
The last link will take you into a course style review of the source and formation of ozone, effects of exposure, and it addresses typical patient questions and clinical scenarios in relation to ozone exposure. Some of the information is a little doctor-ish or consultant-ish, but it really does provide some very interesting information on this topic.
Musicman, are you looking to reduce exposure in the workplace or in your home? If you are in your home there are numerous systems that can help and professionals that can consult you through some changes to reduce exposure to chemicals and off-gasing of building components and content materials.