The ReliOn company is a manufacturer of home health products. One of these products is humidifiers as they offer many health benefits. Whether you have the Cool Mist, Warm Mist, or Ultrasonic system, you will find the correct filter replacements here to maintain your unit and keep the ideal humidity level in your home. ReliOn filters are also commonly listed under the Kaz and Protec brand names and many times are not packaged using the ReliOn name. If you do not see your filter listed here, please check our Kaz and Protec sections in our humidifier pad section.