No fan is the use of natural wind power and indoor and outdoor temperature difference caused by air convection, rotation of the turbine and thus promote the use of centrifugal force and negative effects of the indoor stale hot air exhaust. "Inflatable Air Blower" The key to the system's energy transmission and distribution, is very critical part of building energy efficiency. According to the National Air Conditioning Equipment Quality Supervision and Inspection Center for many years "Inflatable Air Blower" test showed a lot of fans at rated conditions are a problem, and therefore the need for strict product standards in accordance with the requirements of production and manufacturing wind turbines. Fan is the gas compression and gas transportation machinery habit abbreviation, commonly referred to include ventilator fans, blowers, wind turbines. "Inflatable Air Blower" is the main structural component of the impeller, housing, air inlet, brackets, motors, pulleys, couplings, muffler, transmission parts (bearings) and so on.