What is the Clean Air Delivery Rate (CADR)?

The Clean Air Delivery Rate (CADR) is specifically defined as a measure of air cleaner efficiency, indicating how well an air cleaner can remove specific pollutants from the air. It is typically reported in cubic feet per minute (CFM) and assesses the volume of clean air that an air purifier can deliver into a room. CADR ratings help consumers evaluate the performance of different air cleaning devices by showing how effectively they can filter out dust, smoke, and pollen particles from indoor air.

This measure focuses on the actual effectiveness of the cleaner rather than other metrics such as energy consumption or noise levels, which are addressed by other standards. By ensuring a high CADR, manufacturers demonstrate the ability of their air purifiers to significantly improve indoor air quality, making this option the correct choice in the context of understanding air cleaner efficiency.