The G.A.S SonicAir PRO Humidifier is a powerful piece of equipment capable of controlling the humidity levels of large growing spaces. Perfect for use during the vegetative phase, increasing humidity levels for maxmimum growth.Control humidity to optimize nutrient uptake and water absorbtion. 150mm directional spout produces large volumes of vapour. Max output of 6.5 litres per hour. Built in automatic shut down. Easy to set up and control. Includes UK power plug. Run quitely at less than 35dB. Ideal for use with G.A.S Intelligent Humidity Controller.