Understanding the Difference Between Cool and Warm Humidifiers

Understanding the Difference Between Cool and Warm Humidifiers

Both cool and warm humidifiers are designed to increase the amount of moisture in your home. While they share this feature in common, there are some key differences between the two models. It’s important to learn more about humidifiers, so you can select the one that fits your family’s needs the best.

Cool and Warm Humidifiers

If you want your humidifier to help combat breathing issues and flu-like symptoms, then it doesn’t matter whether you choose a cool or warm mist humidifier. The temperature of the mist will likely reach room temperature by the time it gets to your lungs, no matter what temperature is set when it leaves the device.

Both types will effectively hydrate your living space, which can also help protect certain furniture in your home. The following list highlights some of the key differences between the two types:

Cool Mist Humidifiers


  • It’s easier to clean this type of humidifier.
  • They require much less energy to operate as there’s no heating component.
  • Cool mist humidifiers are safer to use with children since the water doesn’t heat up.
  • Wick type humidifiers are able to read the humidity level in a room and automatically adjust accordingly.


  • Bacteria, dust and other minerals may be diffused with the mist.
  • They are noisier to operate because of the fan.

Warm Mist Humidifiers


  • Heating water destroys any bacteria or mold that may be present.
  • They make very little noise.
  • The warm mist simultaneously raises the temperature of a room, which can be beneficial when you’re sick.
  • Medicated inhalants can be mixed in with the water, so they’re distributed into your living space.


  • They require more energy because of the heating process.
  • They need to be cleaned more often than cool mist humidifiers.
  • Since scalding is a risk, warm mist humidifiers aren’t a good option for young children.

Do you want more information on how to use cool and warm humidifiers in your Monmouth County home? Please feel free to contact Aggressive Mechanical Contractors, Inc. anytime.

Our goal is to help educate our customers in Monmouth County, New Jersey and surrounding areas about energy and home comfort issues (specific to HVAC systems).

Credit/Copyright Attribution: “ra2studio/Shutterstock”

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