Can You Put Essential Oils in a Cool Mist Humidifier?

Can you put essential oils in a cool mist humidifier?

What are essential oils? 

Essential oils are oils gotten from bark, stems, seeds and leaves of trees and have several benefits to the body. When used in the home they give off a pleasant fragrance and clean the air.

Studies have also shown that because of their chemical properties, essential oils can help fight off allergens in the air and restore balance to the body and mind. 

One way to use essential oils in the home is by diffusing them into the air. The most reliable way to do is by using a diffuser to release the oil. However, some homeowners have humidifiers and would rather use that to diffuse the oil. This is possible, however, homeowners should opt for cool mist humidifiers as they have specially designed to do just that asides releasing moisture into the air. 

How does cool-mist humidifier work? 

As summer goes by and the temperature starts to drop, a lot of things come with it asides the cold; stuffy nose and blocked throats. Blocked sinuses can be very uncomfortable especially to children, and they usually occur when the air is too dry and humidity levels drop. 

You can easily eliminate or prevent humidity levels from dropping in your home by using a cool mist humidifier. They work by releasing moisture via their air nozzle into a room. Cool mist humidifiers are available in different two types; cool mist evaporative humidifier and cool mist ultrasonic humidifier. Both humidifiers have the same function but are designed with different technologies. 

If you’re going to use your cool mist humidifier as a dual machine, humidifier and diffuser, ensure you buy a cool mist humidifier that does both jobs. Your cool mist humidifier should have a special oil tray or mister that releases essential oils into the air. This way they have no contact with the plastic tank and prevent damage. 

Benefits of essential oils 

  1. Essential oils have been used for centuries to help alleviate anxiety, stress, depression, and uplift your overall mental and physical health. 
  2. These plant oils are also known to prevent and cure respiratory infections such as colds, inflammation, cough, and blocked sinuses. 
  3. Because of their calming properties, diffusing some essential oils after a long day at work can help you sleep better and peacefully.
  4. Several studies on essential oils have shown that they can help control your appetite. They interact with our limbic system and suppress the desire to overeat. 

Despite their immense value to human health, essential oils in humidifiers should be used sparingly. 15 – 30 minutes is great to diffuse your oil especially if you are staying in the room as it diffuses.

Allowing the machine to work for too long can cause nausea or headaches. You can remove the oil tray after a while and allow the machine to work only as a humidifier or pour drops of oil at a time. 

Best practices to maintain your cool mist humidifier 

Essential oils though can be used in a cool mist humidifier they are not exactly built for that. To ensure your device lasts long, here are some best practices

  • Set a routine to regularly clean your cool mist humidifier, daily or weekly. Because oil quickly builds up and may clog and damage the plastic parts of the humidifier, it is essential you clean frequently.
  • Avoid using excessive essential oil in your humidifier. Most cool mist humidifiers come with a separate oil tray where you can store the oil. In this case, you can easily measure the amount of essential oil to use in your humidifier. However, where your device does not come with a tray and you have to pour directly into your tank, pour only drops of oil into the tank.
  • Periodically turn off the device during the day. Because they now emit oil into the air they need the rest to prevent the system from overworking. 


Yes, you can use essential oils in a cool mist humidifier especially if you’re trying to save costs. They will give your home a pleasant fragrance all-day long and improve your overall body health. 


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