Keep the air your family breathes free from odors, pollen, dust and tobacco smoke with this DynaFilter Air Cleaning Replacement Cartridge 3-Pack from Kaz! For use with Vicks Cool Mist Humidifiers as well as Kaz DynaMist and HealthMist Humidifiers, air is filtered through the unique two-stage system to remove particles as small as pollen from the air! Exclusive cross-woven polyester and activated carbon remove pollutants for a totally healthy household!