US NUCLEAR REGULATORY COMMISSION
"Even when ozone is present in low levels, inhaling it triggers a variety of health problems including chest pains, coughing, nausea, throat irritation, and congestion. It also can worsen bronchitis, heart disease, emphysema, and asthma, and reduce lung capacity"
http://www.policyalmanac.org/environment/archive/ozone.shtml

EPA
"Scientific evidence shows that at concentrations that do not exceed public health standards ozone has little potential to remove indoor air pollutants"
http://www.epa.gov/iaq/pubs/images/ozone_generator.pdf

AMERICAN LUNG ASSOCIATION
"It can have damaging health effects, especially for persons with asthma and other lung diseases, children and the elderly. It is produced directly by ozone generators and indirectly by ion generators and some other electronic air cleaners. The American Lung Association suggests that ozone generators not be used."

NATIONAL INSTITUTE FOR ENVIRONMENTAL HEALTH
"no federal agency approves, much less recommends, ozone generators for use in occupied spaces."
http://www.niehs.nih.gov/oc/factsheets/ozone/airfresh.htm

STATE OF CALIFORNIA HEALTH DEPARTMENT
"People should avoid using indoor air cleaning devices that produce ozone, sometimes referred to by marketers as activated oxygen," said Jim Stratton, M.D., M.P.H., State Health Officer."
"Although ozone generating machines are promoted as air cleaners, independent studies have shown that the machines do not effectively destroy microbes, remove odor sources or reduce indoor pollutants sufficiently to provide any health benefits. The Federal Trade Commission has recently taken action against some manufacturers of ozone generating machines for making unsupported claims about the ability of the machines to clean air."
(matter of fact, the FTC fined Alpine/Ecoquest 1.5 million dollars for making false claims)
www.applications.dhs.ca.gov/ pressreleases/store/pressreleases/27-97.html

STATE OF MINNESOTA HEALTH DEPARTMENT
"Some air cleaners are designed to produce ozone which is a strong oxidizing agent and a known irritant of the lungs and respiratory system. Studies have shown that ozone, even at high concentrations, is not effective at killing airborne mold or surface mold contamination. Health experts, including the Minnesota Department of Health, do not recommend the use of ozone to address mold or any other indoor air problems."
http://www.health.state.mn.us/divs/eh/indoorair/mold/

NATIONAL NETWORK FOR HEALTH
"Ozone is a molecule composed of three oxygen atoms. It is a highly reactive chemical that is sometimes used to clear pollution in unoccupied buildings. It is also a strong lung irritant. People with asthma can be especially sensitive to ozone, and it can bring on attacks"
http://www.nnh.org/products/AirCleaners.htm

STATE OF NORTH CAROLINA HEALTH DEPARTMENT
"The North Carolina Department of Environmental, Health, and Natural Resources recommends that this type of cleaner NOT be used. Ozone can have adverse health effects."
http://www.ces.ncsu.edu/depts/fcs/housing/pubs/fcs3606.html

STATE OF VERMONT DEPARTMENT OF HEALTH
"Although some manufacturers of air cleaning equipment have claimed that ozone generators can decrease volatile organic compounds (VOCs) in the air, research has shown that such devices may, in fact, increase some types of VOCS."
http://www.healthyvermonters.info/hp/airquality/ozone.shtml#four

STATE OF WISCONSIN HEALTH DEPARTMENT
"Air cleaners employing electrostatic precipitation or ion generation may produce ozone, a gas that can irritate the lungs. Production of ozone may be particularly high if the air cleaning system has been improperly installed or maintained. The Department of Health and Family Services (DHFS) does not recommend using air cleaning machines that operate by producing ozone."
http://www.dhfs.state.wi.us/eh/Air/fs/AirCleaner.htm

STATE OF MISSISSIPPI HEALTH DEPARTMENT
"Some air cleaners are designed to produce ozone. Ozone is a strong oxidizing agent used as a disinfectant in water and sometimes to eliminate odors. However, ozone is a known lung irritant. Symptoms associated with exposure include cough, chest pain, and eye, nose, and throat irritation. Ozone generators have been shown to generate indoor levels above the safe limit. Furthermore, it has been demonstrated that ozone is not effective in controlling molds and fungi, even at high concentrations far above safe health levels. Also, ozone may damage materials in the home. For these reasons, the Mississippi Department of Health strongly recommends that you do not use an ozone air cleaner in any occupied residential space."
http://www.msdh.state.ms.us/msdhsite/_static/43,323,223.html

STATE OF ARIZONA HEALTH DEPARTMENT
"ozone is not effective in controlling molds and fungi, even at high concentrations far above safe health levels. Also, ozone may damage materials in the home. For these reasons, the Arizona Department of Health Services strongly recommends that you do not use an ozone air cleaner in any occupied residential space."
http://www.azdhs.gov/phs/oeh/invsurv/air_qual/moldcleanup.htm

NBC T.V. INVESTIGATION
"They generate ozone, which can be especially irritating to people with asthma and other lung problems -- the same people who often buy these products to improve their health. Ozone is the most harmful component of smog."
http://www.nbc11.com/health/3678379/detail.html

OSHA (US GOVERNMENT)
"Sources: Copy machines, electrostatic air cleaners, electrical arcing, smog.

Acute health effects: Eye, respiratory tract, mucous membrane irritation; aggravation of chronic respiratory diseases."
http://www.osha.gov/dts/osta/otm/otm_iii/otm_iii_2.html