How to Demineralize a Humidifier


Humidifiers can be a helpful appliance for those who are suffering from respiratory problems, allergies or for individuals who live in a dry climate or during cold weather. A humidifier is filled with water and dispenses a steady stream of mist into a room or home to increase the overall moisture content in the air. Because water sits in the humidifier tank, bacteria and mineral scale can grow easily and may affect the performance of the humidifier and may even release deposits or germs into the air. Demineralizing a humidifier on a regular basis is an important part of maintaining the device.

Things You'll Need

  • Vinegar
  • Bleach
  • Measuring spoon
  • Clean cloth(s)
  • Soft brush(es)
  • Turn off and disconnect the humidifier. Lift off the water tank and empty any remaining water into a sink. Drain any water from the base.

  • Clean the exterior of the base with a cloth dipped in vinegar. Fill the base with vinegar and scrub with a soft brush. Empty out the vinegar and rinse well with water. Dry with a clean cloth.

  • Mix together ½ tsp. chlorine bleach with ½ gallon warm water and fill the water tank. Allow it to sit for 20 minutes and then scrub thoroughly with a soft brush. Rinse until no more bleach can be smelled and dry with a clean cloth.

  • Lift out the water float, located on the bottom of the humidifier, and clean with vinegar and a soft brush or cloth. Rinse with water and replace.

  • Reassemble the humidifier and fill the tank with clean, cool water. Restore power.

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