Fogging diffuser (or ultrasonic)
The principle: a membrane vibrates in the frequency range between 20 kHz and 80 kHz. Droplets are torn from the surface of the liquid, so that the water (and any essential oils you add) is "atomized" into droplets so fine that they evaporate into a mist.
Advantages/disadvantagesof misting diffusers: access our special file
Do you have a problem with your misting device? Find out how to make it work: see our special report