Features: *100% brand new and high quality *Made of high-quality materials, more durable *This tank cleaner reduces up to 99% of odor causing bacteria, unsightly mold, & algae growth *This Humidifier Demineralization Cartridge helps to prevent and reduce the white-dust caused by minerals in hard water. This hard-water“dust”can contain calcium,lime or magnesium.The Demineralization Filters can help extend the life of your humidifier ,purifying water,Prevent odors *Demineralization Cartridge work for HoMedics UHE-CM65, UHE-WM70, UHE-OC1, UHE-HDC4,UHE-CM45B, HE-CM25, UHE-CM25, UHE-WM16, UHE-OW14, UHE-WM85.Fit evaporative,Warm & Cool Mist Ultrasonic Humidifier, most humidifier,such as for Vicks，for LEVOIT ,for Honeywell,for Homasy. *The filters work with all HoMedics 1-gallon or larger ultrasonic humidifiers. Each demineralization cartridge gets 30-40 full tank uses. *Just drop one humidifier charcoal filter into your humidifier tank and it will start to work.One humidifier cleaner can be used in humidifiers with a tank that is up to one gallon in size.Replace every 30-60 days Specifications: *Size: 4.57*2.28CM (Approx.) *Color: As Pictures Show Package Contents: 6* Ultrasonic Demineralization Humidifier Replacement Cartridges Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.