Adds amazing mist effect to your pond or water tank to filter bad odor with electronic and ultrasonic technology Water mist is cold mist which has the effect of cooling and humidify the air. Easy to use, long life, self-protection. A large number of negative ions from the cold fog can improve the body’s ability to absorb oxygen and emit carbon dioxide, this which is beneficial for the treatment of respiratory diseases. Ideal for indoor or outdoor fountains, fountains and offices. With a water retention support, the head of spray can be placed in so that water does not splash.