Ozone Is Harmful

Ozone is created when high-voltage causes the oxygen molecules in the air to combine to ozone (02+0=03). Ozone generators that are sold as air cleaners intentionally produce the gas ozone. Often the vendors of ozone generators make statements and distribute material that lead the consumer to believe that these devices are always safe and effective in controlling indoor air pollution. The information below is based on the most credible scientific evidence currently available.

Misconception: Generates active oxygen - whatever is generated as ozone is taken away in oxygen.

Scientific Fact: At concentration at which ozone is not harmful, it is also not capable of breaking down gas molecules.

What the American Lung Association says: "...because of the documented negative health impact of ozone...American Lung Association suggests that ozone generators not be used." The ALA takes the position that no amount of ozone emitted is acceptable.

What the EPA says: "...ozone is generally ineffective in controlling indoor air pollution." and "Operation of these devices in the presence of VOCs results in a soup of particles and gases."

How is Ozone Harmful? When inhaled, ozone can damage the lungs. Relatively low amounts can cause chest pain, coughing, shortness of breath, and throat irritation. Ozone may also worsen chronic respiratory diseases such as asthma and compromise the ability of the body to fight respiratory infections. People vary widely in their susceptibility to ozone. Healthy people as well as those with respiratory difficulty can experience breathing problems when exposed to ozone. Exercise during exposure to ozone causes a greater amount of ozone to be inhaled, and increases the risk of harmful respiratory effects.
(US EPA, 1996a, 1996b)

How Can I Test? OzoneWatch

IQAir systems never produce any ozone!