Ultrasonic Humidifier : An ultrasonic humidifier uses a ceramic diaphragm vibrating at an ultrasonic frequency to create water droplets that silently exit the humidifier in the form of cool fog. Applicable Areas: Textile industry: Humidity control and electrostatic removal in textile mill. Paper production industry: Humidity control, electrostatic removal and dust from paper. Plastic industry: Humidity control and electrostatic removal for plastid injection forming factories and plastic product factories and many other areas .. !!