?????????????? ????????????: Evaporative/Ultrasonic Humidifier Demineralization Cartridge Replacement Is Mainly Used To Prevent And Reduce Calcium, Lime, Magnesium And Other Minerals Accumulation And White Deposits In Hard Water. It Can Purify The Water Inside The Humidifier And Remove The Odor, It Has The Ideal Output Of Water Mist To Provide Clean And Fresh Air. | | ?????????????? ??????????????: Including Small Filter For Humidifier. Dimensions: Height: 1", Diameter: 2.56". Put It Into The Humidifier Tank, Simple And Easy To Use, Just Place The Filter Into The Humidifier Tank To Work. | | ???????????????????? ?????????????????????? ??????????: The Small Filter Is Compatible With All Ultrasonic Humidifiers, Evaporative Humidifiers And Warm Mist Humidifiers. If You Are Not Sure Whether Your Vacuum Cleaner Is Fit This Filter For Humidifier, Please