"Inflatable Air Blower" ultra-quiet type, no noise: the motor direct operation by adding one-piece pin sound facilities, improved high-voltage large fan noise is like, so as to mute the effect. High reliability when using the changed circumstances, the machine still safe operation. In addition to the impeller, high pressure blower no other action, therefore high reliability is almost maintenance-free. Use unique and good heat dissipation precision outboard bearing, so it has the following advantages: high compression ratio; bearing operating temperature is low; long life; maintenance-free.