The Kaz K14 DynaDirect Air Humidifier Replacement Filter is an innovative air cleaning replacement cartridge for use with the Vicks Cool Mist Humidifier, Kaz DynaMist humidifiers and Kaz HealthMist humidifiers. Featuring gentle yet effective materials that capture dust, pollen, odors and tobacco smoke, DynaDirect Air Humidifier Replacement Filters (K14) help ensure a cleaner environment while you operate your humidifier.