?? HIGH QUALITY: Our homedics humidifier filter replacement is made of high-quality material and well-tested by the manufacturer to meet the OEM standards and ensure to support a longer service life. This demineralization cartridge for humidifiers is full of activated carbon and cationic resin, which can successfully prevent magnesium and calcium from forming hard water through ion exchange technology, realizing desalination and purifying water. ? FUNCTION: Our ultrasonic humidifier cartridges do a good job of reducing the build-up of white powder caused by minerals in hard water. It can efficiently purify the water and prevent odor emission by absorbing the calcium, lime and magnesium ions contained in hard water, keeping your humidifier at its best working condition and capacity and leading to a healthier breathing environment. ? COMPATIBILITY: Our demineralization cartridge for humidifier is compatible with all HoMedics 1-gallon or larger ultrasonic humidifiers including UHE-OW14, UHE-WM85, UHE-WM65, UHE-CM25, UHE-CM45, UHE-OC1, etc. Compared to demineralization cartridge UHE-HDC4. ? EASY TO INSTALL: Simply drop 1 ultrasonic demineralization filter into your humidifier tank, then it works, and you can begin enjoying clean, pure mist. Replacing the homedics humidifier filter replacement depends on the water hardness. ?? PACKAGE INCLUDED: You will receive 20 pack demineralization cartridge with a nice price. If you have any question on our product, please feel free to contact us, we will back to you ASAP., Manufacturer: MOOTVGOO