Cleaner, better conditioned air. In general, indoor air is four to five times as polluted as outdoor air. Exposure to indoor air pollutants has increased due to a variety of factors, including the increased use of synthetic building materials and furnishings, chemically formulated personal care products, and household cleaners. TRANE CleanEffects, our exclusive technology, filters up to 99.98% of all airborne allergens from the filtered air, down to .1 microns for a cleaner, more comfortable home. And because it doesn’t clog, air return is not diminished, unlike other air filtration systems. So it delivers cleaner, better conditioned air. And more of it. Let’s clear the air:   The air in a typical home built after 1980 is up to 5 times more polluted than the air outside. About 40,000 dust mites, a common cause of household allergies, can be found in only 1 OUNCE of dust. The EPA ranks indoor air pollution among the top 5 environmental risks to public health. Most homes generate about 40 POUNDS of dust per year for every 1500 square feet. An estimated 28 MILLION Americans suffer from Hay Fever and Allergies – an estimated 15 million Americans suffer from Asthma (up 60% from the 70’s).