For "C" HUMIDIFIER FILTER: 4 Pack Humidifier Wicking Filter Compatible with HWF65 HWF65PDQ-U - Filter C. humidifier filters replacements are compatible with Sunbe.am .naire humidifier. IMPROVES EFFICIENCY OF THE HUMIDIFIER:Filter Type C. Extended filter life with help of reinforce outer layer. fits for Modols: HM1888 HM1889 HM2059 HM3000 HM3800 HM3850 HM4000 HM1855 HM1865 HM1850 HM1851 HM1845 HM1840 HM1895 HM2060W SCM1866 SCM1895 SCM1896 HIGH EFFICIENCY: It has high water absorption efficiency and good air permeability which can quickly moisten the air.It captures minerals from hard water to stop white dust and features an outer layer of activated charcoal to fight odor ECONOMICAL: We understand using evaporative humidifiers for home is costly and requires frequent maintenance. With this we make sure that we provide MORE for LESS! Our humidifier filter set includes 4 replacement wick filters which allows for more frequent changes. The more often filter is replaced the cleaner your home is. from being economical this saves you the hassle of looking for a replacement once your filter needs to be replaced Colour: as shown Material: composite material Package Contents: 4 x Humidifier Filter Only the above package content other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.