Noisy (or ultrasonic)
The principle: a membrane vibrates in the frequency range between 20 kHz and 80 kHz. Droplets are torn to the surface of the liquid, so that the water (and the essential oils you will add) is "atomized" in droplets so thin that they evaporate in fog.
Benefits/Inconveniences of heaters: access our special file
Any trouble with your mist? discover the tips for everything to work:access our special file