How to Clean a Humidifier

When used correctly, a humidifier helps add moisture to the air in your home, making breathing easier. However, if the filter or water tank becomes dirty, harmful bacteria can spread into the air. Fortunately, you can clean your humidifier at home with an easy-to-find natural cleaning solution like vinegar.

Clean the filter. Turn off the humidifier and remove the filter. Rinse the filter under cold water to eliminate any impurities. Then, place the filter on a clean towel to dry while you clean the other parts of the device.

• Do not use cleaning chemicals on the filter. Chemicals can damage the filter and prevent it from working properly.
• Some humidifier models require periodic filter replacements. In such cases, refer to the manufacturer’s instructions and replace the filter as recommended.

Clean the water tank. Remove the water tank from the humidifier and empty the old water. Add 3 cups of vinegar to the tank and stir so that the solution covers the bottom and sides of the tank. Let it soak for at least one hour. As a natural cleaner, vinegar will break down any build-up at the bottom of the tank. After soaking, discard the vinegar and rinse the tank thoroughly.

• If needed, use a brush to scrub away stubborn deposits at the bottom of the tank.
• Avoid using other cleaning agents as the solution from the tank will be sprayed into the air. Vinegar is the safest option to ensure a healthy environment for your family.
• If a brush isn't sufficient, add a few tablespoons of rice, vinegar, and cold water into the tank to soften the accumulated dirt. Close the lid, shake vigorously for a minute or more, and let it sit for a while. Repeat this process until no dirt remains. Then discard the mixture and rinse away the residue.

Wipe down the machine frame. Dip a sponge in a vinegar and water solution and use it to clean the other parts of the humidifier. This step helps prevent dust and dirt from entering the water tank and also inhibits the growth of bacteria or mold.

Use a bleach solution. Mix 1 teaspoon of bleach with approximately 3.8 liters of water and pour it into the water tank. Let the solution soak for about 1 hour to clean the surfaces. After that, discard the solution and rinse the tank thoroughly with clean cold water.

• Make sure the water tank is thoroughly rinsed before reattaching it to the machine frame.
• Do not let the bleach solution sit in the tank for longer than 1 hour as it may damage the device.
• Do not mix bleach with vinegar or hydrogen peroxide with vinegar, as these combinations create harmful byproducts.

Use hydrogen peroxide solution. Pour a few cups of hydrogen peroxide into the water tank. Swirl it around to ensure the solution reaches the bottom and sides of the tank, then let it soak for 1 hour. After soaking, discard the hydrogen peroxide solution and rinse the tank with cold water.

Deep cleaning with vinegar. Pour one cup of vinegar and approximately 3.8 liters of water into the water tank. Plug in the device and let the humidifier run outdoors for one hour. After an hour, dispose of the remaining solution in the tank, rinse the tank, and run the device outdoors again for another hour with fresh water. Finally, rinse the tank one last time before using it.

• Do not run the humidifier indoors with vinegar in the tank. Your home will be filled with the scent of vinegar.
• If the tank still has the smell of vinegar after the deep cleaning, add a few drops of essential oil to the humidifier.
• Never use bleach or any other chemicals to clean the humidifier's internal components. If you turn the device on with chemicals circulating through the system, it could cause permanent damage.

Change water frequently. Water left in the humidifier for extended periods can lead to mineral deposits building up on the walls and bottom of the tank. The longer the water remains in the device, the harder it will be to clean the accumulated debris. Change the water daily or every other day to minimize bacterial growth.

Clean the humidifier every 3 days. During dry seasons, when the humidifier is used often, or when a family member is sick with a cold, clean the device every 3 days using a vinegar or hydrogen peroxide solution. Additionally, perform a thorough cleaning every two weeks or more.

Replace the humidifier when necessary. Over time, humidifiers will begin to deteriorate. Worn-out parts are more likely to promote bacterial growth.

• If the humidifier has been used for over 5 years, consider replacing it with a new one.
• If you’re not ready to replace it, ensure a deep clean using bleach or hydrogen peroxide every few weeks.

Keep the area around the humidifier dry. If the humidifier causes the surrounding environment to become overly humid, stop using it. A damp environment around the device can encourage the growth of bacteria and mold.

Store the humidifier properly. At the end of the dry season or after use, clean the entire humidifier and allow it to dry completely before storing it. The next time you use the humidifier, clean it again before use.

• If you prefer not to use harsh cleaning chemicals, vinegar is the top choice for cleaning mineral buildup from water deposits.
• Depending on your water's mineral content, you may opt for other cleaning solutions.
• Using distilled water helps prevent mineral buildup from hard water and reduces bacterial growth.

• You should allow the humidifier to cool down before attempting to clean it.

• Dish soap
• Descaling solution or spray bottle
• Non-abrasive brush
• Warm water