Review on TopTech Knight Purification System Model by Patty Martin

Installed in my house for about 3 months; I will delete it soon. It produces ozone which is irritating to the lungs and worse. You have to constantly turn on the oven fan to break down the ozone. Your electricity bill will increase noticeably. I contacted the manufacturer several times and asked how much ozone the device produces. To date no answer. The Environmental Protection Agency does not recommend ozone generators as air purifiers. See their website: http://www2.epa.gov/indoor-air-quality-iaq/ozone-generators-are-sold-air-cleaners-assessment-efficientness-and-health.