Ozone (often hidden by clever marketing terms) is a toxic gas that is proven to have a negative effect on human health. Indoor sources of ozone can cause health problems even at relatively low concentrations, including respiratory tract irritation, asthma, and even permanent lung damage. Ironically, many air purifiers on the market today generate ozone during nor-mal use. We spend about 90% of our time indoors so exposure to ozone from these devices can become a significant health risk. The US Food and Drug Ad-ministration (FDA) was the first to set a limit on ozone emissions from all medical devices at 0.05 ppm. In 2008, because of the dangers associated with ozone, the California Air Resources Board (CARB) finalized a state regulation targeting ozone emissions from air cleaners. It requires all electronic air cleaners to be certified to emit less than 0.05 ppm according to the UL867 standard.

Fresh-Aire UV is committed to making the most effective, reliable, and safe air purification products possible. Growing concerns about the safety of ozone for odor removal and the recent ASHRAE Position Document on Filtration and Air Cleaning have made it clear that our industry needs to change. Today many Central HVAC mounted air purification systems still broadcast large amounts of ozone or airborne oxidizers into occupied spaces as a means of attacking odors and airborne microbes, this approach is clearly unsafe.

APCO® detoxes the air with a process called photocatalytic oxidation (a technology similar to the catalytic converter on your car’s exhaust). The UV light reacts with titani-um dioxide infused into the carbon which effectively disintegrates the captured contaminants, leaving only harmless water vapor and CO₂ which are released back into the air. This process leaves the carbon cells clean so they never fill up or need to be replaced. The result is clean, odor-free air throughout the home.