"Inflatable Air Blower" is the main structural component of the impeller, housing, air inlet, brackets, motors, pulleys, couplings, muffler, transmission parts (bearings) and the like. Fan key to energy transmission and distribution systems, it is very critical part of building energy efficiency. According to the National Quality Supervision and Inspection Center air-conditioning fan for many years test showed a lot of fans in the rated conditions are a problem, and therefore the need for strict accordance with product standards of production and manufacturing wind turbines. Local Fan and push-starting device must be installed into the wind tunnel, the return air from the lane way must not be less than 10m; total pressure supplied air volume there must be greater than the amount of suction air local fan, local fan to the installation site return air roadway between the lowest wind speed must comply with the relevant regulations.