( 1 ) products using trefoil linear type of impeller, inlet and exhaust pulsation smooth, low noise.

( 2 ) the product using the curve of the meshing is more reasonable. The leakage of small, high efficiency, reduce energy consumption, is a new type of energy-saving products.

( 3 ) products using a variety of new structural design, make the machine has compact structure, small volume, light weight, beautiful appearance.

( 4 ) products using high precision hard-toothed surface synchronous gear, long service life, low noise.

( 5 ) the output air clean, without any oil and dust