The air filter is like our human nose. The filter material is like the hair on the inside of your nose. Its role is to form a filter barrier before the air enters the cylinder, which will intercept the suspended particles outside the cylinder, so as to ensure that the engine has enough air intake, so as to ensure that the power of the car engine is not lost. If the air filter element can not block all kinds of dust and particles in the air, the engine and people will get sick. It is also, of course, vulnerable. If you blow with an air gun, the strong air flow will drive the dust particles to directly destroy the filter paper fiber and expand the air filter gap. If the air volume is too large, the filter paper may be blown directly. The effect of such destruction is imperceptible to the naked eye.

In general, in the case of the air filter element is not too dirty, you can use the operation of blowing with an air gun outside, but pay attention to blowing from the inside to the outside. If the filter element is already very dirty, and there is mold, discoloration, it is recommended to replace directly.