What does CADR measure?
CADR determines how much clean air an air purifier delivers to a room, and this is measured in cubic feet per minute. Air purifiers are usually tested on their ability to remove three types of common pollutants: smoke, dust, and pollen. If an air purifier has a CADR rating, this measurement is usually found on the packaging, along with an AHAM seal. The higher the CADR numbers, the faster the air purifier filters the air.