... Area:30-40m²Main functions of this movable type:1.Quiet,energy-saving and convenient2.3 gears speed: strong, medium,weak3 ... adopted, high strength, not easy deformation, ultraviolet ray and ageing resistance, mobile type, portability and flexibilityBlower fan: new wind blades adopted, sufficient air ... ect.If you want to gain furthur information, please don’t hesitate to let us know. We will do our best ...