The Clean Air Delivery Rate (CADR) is a metric that was developed as a way of measuring the performance of residential air purifiers.
The CADR rating reflects the volume of air in CFM (cubic feet per minute) that is cleaned of particles of certain sizes. To measure the effectiveness in removing different particle sizes, three types of particles are typically tested: smoke, pollen, and dust. These represent small, medium, and large-sized particles. Each is measured and assigned its own CADR score.
Why is CADR important?
The advantage of the CADR rating is that it gives the consumer a way to compare air purifiers that consider both air flow and filter efficiency.
Additional Information: https://ahamverifide.org/ahams-air-filtration-standards/
The CADR which is a general number representing the different tests conducted for our purifiers, and CFM information can be referenced on our website - Which Alen® Air Purifier is right for you?
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