How Do I Clean a Warm-Mist Humidifier?

Clean a warm-mist humidifier by disassembling the unit, cleaning the water storage tank, wiping the steam chamber and disinfecting the unit. Cleaning ensures the device continues to function properly. Clean warm-mist humidifiers weekly when in use.

  1. Disassemble the unit

    Turn the power button off, and unplug the device. Give the unit time to cool before proceeding. Remove the heating chamber and removable tray from the water tank.

  2. Clean the water storage tank

    Empty any water remaining in the tank. Pour 1 cup of distilled white vinegar in the base. Allow the vinegar to remain in the tank for 25 minutes. Use a clean sponge to scrub the tank with the vinegar. Dump any remaining vinegar into the sink, and rinse the tank using plain water. The vinegar also dissolves any scale buildup from the evaporating water.

  3. Wipe the steam chamber

    Use a damp sponge to wipe the outside of the heating chamber. Take the removable tray to the sink, and rinse it using warm water.

  4. Disinfect the unit

    Add 1 teaspoon of chlorine bleach to 1 gallon of water, and mix well. Fill the water tank with this solution, and allow it to stand for at least 20 minutes. Empty the tank, and rinse it using plain water. Use a towel to remove excess water, and reassemble the humidifier. Fill it with water to make it ready for use.