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Clean Air Delivery Rate

What is Clean Air Delivery Rate?

Clean Air Delivery Rate (CADR) is the number of cubic feet of clean air that an air-filtration system delivers in a minute.

That’s a lot of clean air

Recognized industry-wide by retailers, manufacturers, the EPA, and more, the CADR of an air filter can tell you just how hard it’s working.

The most common air filter, the 1 inch throwaway that’s found in 85% of homes, has a CADR of 10. In contrast, the Trane CleanEffects® Whole Home Air Cleaner has a CADR of 1200. For example, that means the Trane CleanEffects® Whole Home Air Cleaner is filtering all the air in a 12' x 10' x 10' sized room every minute. The next closest air filter is a whole-house electronic air filter, which has a CADR of 660, producing half as much clean air every minute as the Trane CleanEffects® Whole Home Air Cleaner.

For more information on indoor air quality, check out our Trane Topics Air Quality articles.

Related Terms

Air Filter

Indoor Air Quality

Air filters are installed in HVAC systems to remove dust, dander, allergens, and other harmful particles from the air in your home. You can change and maintain air filters on your own.

Pleated Filter

Indoor Air Quality

Pleated filters are one type of filter that might be installed in your indoor air cleaner to trap particles and prevent them from contaminating your home.

Contact a local dealer

Dealers can answer questions, help you find the right products for your home, and repair your system.