Clean Air Delivery Rate (CADR) What is it?

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Clean Air Delivery Rate (CADR) measures the volume of clean air that is produced by an air purifier per minute, indicating how well pollutants are removed from the air you breathe. Air purifier CADR is estimated by multiplying the airflow with the filtration efficiency.

Certified and verified by an independent laboratory, the Association of Home Appliance Manufacturers (AHAM) uses CADR to assure consumers that your air purifier will perform according to the manufacturer’s product claims. Testing is based on the suggested room size and how effectively the three most common household particulates (tobacco smoke, dust and pollen) are removed. Once tested, results are converted to cubic feet per minute. The higher the CADR test numbers, the better the unit’s overall ability to clean indoor air. For example, if an air purifier has a CADR of 380 for tobacco smoke particles, it will reduce smoke particle levels to the same concentration as would be achieved by adding 380 cubic feet of 100% clean air per minute.

Providing a direct comparison between top-rated air purifiers, CADR is the only air purifier standard that is recognized by the American National Standard Institute, since it allows for consistent comparison between AHAM certified products. CADR is also endorsed by the U.S. Food and Drug Administration and the Environmental Protection Agency.

Blueair is one of the first manufacturers to earn the Energy Star designation for air purifiers. Blueair not only meets but also exceeds the Energy Star minimum standards for energy efficiency.

Certified and verified by an independent laboratory, AHAM uses CADR and Energy Star ratings to provide a direct product comparison for consumers.

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