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Ultrasonic Diffusers

Aug 10, 2020

Ultrasonic Diffusers

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Ultrasonic diffusers work in a similar way to nebulizing diffusers by creating a fine mist. The difference is that ultrasonic diffusers use water and essential oils to create an ultrasonic cool mist of water/oils that releases into the air. They double as a humidifier, so they are beneficial in winter, but they don’t put out as strong of a concentration of essential oils since they also use water.

Note: It is not recommended to use citrus essential oils with this type of diffuser as they can cause the parts to erode.


  • Less expensive than nebulizing diffusers

  • Doubles as a humidifier (beneficial in cold months)

  • Many options to choose from

  • Doesn’t use heat

  • Water tank has a large capacity


  • Can’t use citrus essential oils

  • Need water to operate

  • Must be cleaned occasionally

  • Some have lights that can’t be turned off

  • Not as effective as nebulizing diffusers