An air washer is a hybrid appliance, a combination of an air purifier and a humidifier. Air washers remove many types of household allergens including dust, dust mites, pet dander, pet hair, mold spores, pollen, and other airborne particles while adding moisture to the air. The most popular types of air washers use impeller technology Specifications: Air Flow : 18000 CMH to 30000 CMH Motor Power : 1.1kw to 3kw