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Pink Mold In Humidifier: How To Prevent & Get Rid Of

Mold comes in a variety of colors and is most noticeable in wet, damp, and dark areas. A pink mold happens to be the most popular type of mold found in a humidifier. 

The Pink mold in the humidifier is a common issue you may have to deal with when using a humidifier. If you have ever noticed any slimy gunk in the water tank while trying to refill the water reservoir then you have mold in your humidifier. From that slimy stage it changes color, and the next time you open your humidifier to refill it, the colors will be visible. 

This pink mold comes in three forms which are Fusarium, Aureobasidium pullulans, and Serratia marcescens. The pink mold that is likely to be in your humidifier is Aureobasidium pullulans. But not to worry, it is not as serious as the name sounds. 

In this article, you will learn ways to get rid of those pink mold in your humidifier instead of getting rid of the humidifier itself. 

Is Pink Mold In Humidifiers Dangerous?

Yes, it is dangerous. Pink mold can cause respiratory problems when it gets into your humidifier. That is because it has tampered with the air you breathe. 

From your humidifier, a mold goes in search of another breeding place which can be either your nose or your lungs. Over time, you will experience what is known as humidifier lungs as a result of the mold. 

When you have humidifier sickness, you develop symptoms like cough, cold, fever, congestion, or difficulty breathing. To avoid all of this trouble, you need to inspect, clean, and maintain your humidifier constantly. 

Whenever you notice a pink mold in your humidifier, it is advisable to get rid of it as soon as possible. Thankfully, you can remove the mold yourself using the DYI method.  

How Do I Get Rid Of Pink Mold In My Humidifier?

You can remove the pink mold in your humidifier yourself if the mold is seen in small patches in an easily accessible area. You can as well decide to consult a professional if you have a respiratory condition such as asthma, or if the mold appears in large quantities.

To remove these mold yourself you need to put on a respiratory mask, gloves, and goggles to protect yourself from getting eye, skin, or lung irritation. Before the cleaning starts, ensure you follow the manufacturer’s instructions to see if it is compatible with the following steps. 

a. Unplug your humidifier from electricity and remove the water tank from the base. 

b. Fill up the tank with vinegar or hydrogen peroxide. You can add bleach or any chemical ingredients which must be by the manufacturer’s instructions. 

c. Leave the hydrogen peroxide or vinegar to sit in the water tank for half an hour. Leaving it for this long will weaken the pink mold so that you can remove it with ease. 

d. Pour out the vinegar or hydrogen peroxide after the wait and rinse the water tank with warm water and dry. 

e. Using either water solution, hydrogen peroxide, or vinegar, clean the base according to the manufacturer’s instructions. 

f. Look out for traces of mold in the vapor sprout and if you see one, clean with the same ingredient using a toothbrush. 

How To Prevent Pink Mold In Humidifier

Regular cleaning is one way to protect your humidifier and prevent pink mold from growing in it. This in turn will prevent the spread of germs and spores around your home. 

Remember that before you start cleaning, you will need to adhere to the manufacturer’s instructions to avoid spoilage or mistakes. Follow the steps below to complete the cleaning process:

a. Empty the water tank of the humidifier after you have unplugged it. 

b. Use a soft-bristled brush to scrub the interior part of the humidifier using a mild soap. This process will help remove any scales or mold buildup. 

c. Rinse the humidifier with hot water.

d. Check the vapor sprout and clean with a neat cloth using a mild liquid soap. 

e. Allow the humidifier and its other parts to dry before assembling it back to its original state. 

This process covers just the cleaning option, meanwhile, there are some other additional steps you can take to prevent the growth of pink mold in a humidifier. 

Protect Your Humidifier To Resist Pink Mold

This process can make your humidifier’s water chamber stronger to resist mold. These additions include:

a. Tea tree oil is a natural disinfectant and drops of it into your humidifier water will prevent the growth of pink mold. The tea tree oil also aids people with asthma and respiratory issues in breathing well.

Its antifungal, antibacterial, and antiviral properties keep mold stay away from the humidifier. 

b. There are also humidifier tablets which also help in the prevention of mold growth and lime buildup inside the water tank. You can get this humidifier tablet at any local store and drop one tablet into the water. 

c. Hydrogen peroxide is another strong cheap remedy to deter the presence of pink mold in your humidifier. Drop a few drops into the water reservoir to carry out the mission. 

d. You can also use vinegar. Start by adding a cup of vinegar to the water in the humidifier and all mold will cease to exist there. It is safe for you and your humidifier. 


The presence of pink mold in the humidifier is a common occurrence and if ignored, can cause havoc to your health and the entire household. To prevent the existence of pink mold in your humidifier, you need to clean your humidifier regularly.

 Also, add disinfectants that can keep it away from the appliance. Changing the water and always scrubbing the vapor sprout can also help. Getting rid of them is simple so take strict measures once you notice their presence.