What does CADR mean?
A. CADR stands for Clean Air Delivery Rate. It is a standard set by AHAM (Association of Home Appliance Manufacturers) to measure the efficiency of air purifiers. “The higher the CADR rating, the faster the unit filters the pollutants out of the air (source: AHAM 2000 Directory of Certified Room Air Cleaners, Edition 4, 10/00).
To the consumer, CADR is an important tool for comparing the overall performance of different makes and models of air cleaners. CADR stands for Clean Air Delivery Rate, a measure of the total volume of air that a particular air purification system cleanses of a specific pollutant in one minute. When the particle size and filter efficiency of any two air cleaners are the same (as they often are), CADR is the key to choosing the more effective system. To ensure accuracy and fairness, CADR testing is performed only by an independent industry organization, the Association of Home Appliance Manufacturers (AHAM). CADR test results are recognized as accurate and impartial by the U.S. Environmental Protection Agency and the American Lung Association. CADR test results are expressed in cubic feet per minute (CFM), with a number rating for three “yardstick” pollutants: tobacco smoke, dust and pollen. The higher the CADR test numbers, the better the overall ability of the unit to clean your indoo
