Mist Maker HumidifiersSimple, Easy to Use Ultrasonic Foggers These brilliant little units make increasing moisture levels a doddle. All you need to do is place them in water (just below the waterline) and they'll produce an abundance of water vapour. The three site version gets through 900ml per hour and the five site version does 1500ml per hour! To make things as easy as possible, purchase a float for the foggers to sit inside. These floats will keep the foggers at the