In order to make the engine work normally, it needs to absorb a large amount of pure air. If the harmful material( like dust, colloid, alumina, acidized iron) in the air is absorbed, cylinder barrel, piston group will increase its burden, which makes them worn abnormally, thus mixed in the engine and cause the large extent of wearing, the worsening of the engine performance, shorten the lifetime of the engine and avoid its wearing. At the same time, the air filter has the function of noise reduction.

Normally it is required to replace the air filters 10000KM to reach its best effects.

 The performance of the air filter

1. The quality condition to maintain its performance

A. The high efficiency of filtration( cleaning efficiency)  B. The low resistance of pass air c. Long lifetime

2. The quality conditions to maintain durability, rationality:

A. Resistance to pressure, resistance to vibration, high durability and no dust seeped

B.  Low temperature resistance, high temperature resistance, waterproof, the superior paper, glue will not be separated

C. The assembling and unassembling will be easy and light

The structure of air filter