It blocks dust, pollen and sand particles, allows clean air to be accurately mixed with fuel, guarantees combustion efficiency, and extends the life of the cylinder block and piston ring.The high-flow filter element adopts multi-layer cotton yarn or special sponge, which takes into account filtration and ventilation, and the throttle response is lighter; some competition-grade products use metal mesh to superimpose grease to capture fine dust, which can be cleaned repeatedly, which is economical and environmentally friendly.Regular cleaning or replacement can avoid power loss and soaring fuel consumption, so that the car can breathe smoothly for a long time and gallop all the way.