car smart air purifier

•CADR •Clean Air Delivery Rate, the CADR data is more high and its purification effect is more better . •AQI •Air Quality Index , description the quality of air, the main items are particle, Sulfur dioxide, nitrogen dioxide, ozone, carbon monoxide . •HEPA filter •High Effieiency Particulate Air Filter , remove airborne allergen, such as acarid, pollen, germs, second-hand smoke, dust, etc. purification efficiency is as high as 99.7% for particulates as small as 0.3μm,