Just read an article in consumer reports testing ionizing air cleaners and the dangers of ozone that is produced in the process.
Recent studies of ozone's cumulative effects also raise concerns. A 14 year study of 95 urban areas in the U.S. found a clear link between small increases in ozone and higher death rates according to the article.
Ozone Raises Other Threats
While ozone dissipates indoors, it can create other pollutants in the process. Research suggests that ozone reacts with the terpenes in lemon - and pine - scented cleaning products and air fresheners, creating formaldehyde-a carcinogen-and other irritants. Those byproducts can be absorbed by beds and carpets, and be released over an extended time frame. Research has also found that ozone reacts with terpenes to create additional ultrafine particles, which are hard to filter and can go deep into lungs.
The full article can be found in the May 05 Consumer Reports.
Ron