New holmes HOLMES HWF65PDQ-U-1 Black Type C - Extended filter life with help of reinforce outer layer - Extends product life as less mineral deposits will attach to the unit - Filter Type C - Holmes filter fits: HM1865 HM1895 SCM1866 SCM1895 Keep your air humidifier operating at peak efficiency with the Holmes Air Humidifier Filter C. This triple-layer humidifier filter helps control dust and dirt buildup inside your humidifier. It also effectively traps mineral deposits found in tap water helping prevent impurities from spreading into your home. A baking soda layer helps remove household odors so you can enjoy the renewing effects of clean moist air in your surroundings. It is designed for use with Holmes HM1865 and HM1895 and Sunbeam SCM1866 and SCM1895 model humidifiers.Holmes C Humidifier Filter HWF65PDQ-U