:snip::"...The controversy about ion generators revolves around whether they actually work and, if they work, how well they work (usually not so well).
The concern about ozone generators is much greater. If they don't produce high levels of ozone, then they don't work, because they can't work. If they do work, then they are producing dangerously high levels of ozone. That is why ozone generators for residential use is widely condemned.
See the EPA fact sheet on ozone generators at:
Ozone Generators that are Sold as Air Cleaners | Indoor Air | US EPA
See also the fact sheet of the NIEHS (National Institute of Environmental Health of the National Insitutes of Health) at
Notice of Redirection
"The bottom line is this: To generate enough ozone to be potentially effective, the ozone equipment would have to produce dangerous amounts of ozone. Contrary to suggestions from some sales people, no federal agency approves, much less recommends, ozone generators for use in occupied spaces."
Notice of Redirection
See the latest statement by the CARB (California Air Resources Board) at
AirShare - News
"These machines are insidious. Marketed as a strong defense against indoor air pollution, they emit ozone, the same chemical that the ARB and the US/EPA (U.S. Environmental Protection Agency) have been trying to eliminate from our air for decades," said acting ARB Chairperson Barbara Riordan. "More chilling is that some people susceptible to the ill effects of ozone will eagerly bring these Trojan horses home."
"Manufacturers often falsely claim that these devices eliminate bacteria, mold, and chemical contaminants from the air, and that they help persons with asthma and allergies.
