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How to clean a humidifier

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By the Repair.com team

Let's fix this!

Dry air can cause a host of physical maladies and generally make life unpleasant. One tool to combat an arid afternoon is a humidifier. Learn how to clean a humidifier to prevent mold and bacteria growth that can make you sick as well as mineral buildup that can damage your humidifier.

Estimated time

30 min.

Difficulty

Frequency

Weekly

Cost

Tools

  • Water (distilled preferrable)
  • White vinegar
  • Paper towels or clean, soft cloth
  • Clean, soft dish brush
 

For more information on humidifiers, see:

 

Step 1. Clean inside of tank

  1. Turn humidifier off and make sure it is unplugged.

  2. Separate tank from basin.

  3. Remove all standing water from tank.

  4. Rinse with warm water and dish soap and let dry, or wipe down with paper towels or a soft cloth. Note: When the humidifier is in use, this step should be done daily as well.

  5. Refill with a solution of vinegar and water: 2 tablespoons of white vinegar per each half gallon of water. Note: You can also use 1/2 tablespoon of hydrogen peroxide per half gallon of water.

  6. Replace top and shake tank a few times.

  7. Let sit for 20 minutes, swishing the liquid inside the tank periodically.

 

Step 2. Remove buildup

  1. Pour out the water and vinegar solution. ​Tip: If buildup is severe, scrub the tank gently with a clean, soft dish brush before pouring out the solution.

  2. Rinse a few times to remove the vinegar smell.

  3. Dry with paper towels or a clean, soft cloth.

  4. Let stand for 5 minutes until completely dry.


Note: Never use any sharp objects when cleaning the humidifier.

 

Step 3. Wipe down basin with damp cloth

Let stand for 5 minutes.


Note: 
Consult the owner’s manual for instructions before getting the basin wet. Pouring water into the basin of some units can ruin the motor.

 

Step 4. Refill tank with water

Using distilled water rather than tap water will result in less mineral buildup.

Tips:

 
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The Repair.com team

The Repair.com team is made up of experienced writers, editors and repair experts dedicated to providing you with the most reliable and comprehensive information about keeping your home running right.