Many products claim to effectively clean your indoor air, but which ones really work? Comparing the clean air delivery rate (CADR) is a great place to start. This standard has been recognized by the Federal Trade Commission (FTC) and the Environmental Protection Agency (EPA) as a fair and objective comparison of various air cleaning technologies.


The clean air delivery rate is the volume of clean air a system will deliver into your home. Two factors affect this rating—the efficiency of the filter material and the amount of air that passes through the device. The more effective the air cleaning system, the higher the clean air delivery rate. When comparing air cleaners of any kind, ask your dealer or retailer for the clean air delivery rate for that type of air cleaner, and then compare it to the rating for Trane CleanEffects™.