CADRwaarde

CADRwaarde, short for Clean Air Delivery Rate, is a rating used for air purifiers to express how much clean air the device can deliver per unit of time. The term is commonly used in Dutch contexts to describe the purifier’s performance in removing airborne particles.

The CADR rating is determined under standardized laboratory conditions by the Association of Home Appliance Manufacturers (AHAM) in the United States. The rating is provided for three particle sizes: tobacco smoke, dust, and pollen. Values are usually given in cubic feet per minute (CFM) and indicate the volume of purified air delivered per minute at the tested settings. In European contexts, CADR can also be listed in cubic metres per hour (m3/h). These three figures help consumers compare purifiers for different kinds of pollution.

Interpretation and use: A higher CADR value means the purifier can clean air more quickly for the corresponding particle size. When selecting a unit, users should consider the room size and compare CADR values that match that space. AHAM also provides a recommended room size for each tested CADR value. It is important to note that CADR does not measure energy consumption, noise level, or performance under all real-world conditions.

Limitations: CADR values are obtained under controlled lab conditions with specific testing aerosols and room geometries. Real-world performance can vary due to room layout, open doors or windows, additional pollution sources, or leakage around the purifier. CADR should be used alongside other factors such as energy use, noise, and the filtration system to judge overall suitability.