An air filter element is a type of filter, also called an air filter cartridge, air cleaner, etc. It is mainly used for air filtration in engineering vehicles, automobiles, agricultural vehicles, laboratories, sterile operating rooms, and various precision operating rooms.
During engine operation, a large amount of air is drawn in. If this air is not filtered, suspended dust in the air will be sucked into the cylinders, accelerating the wear of the piston assembly and cylinders. Larger particles entering between the piston and cylinder can cause severe "cylinder scoring," which is particularly serious in dry and sandy working environments. The air filter is installed in front of the carburetor or intake manifold to filter out dust and sand particles from the air, ensuring that sufficient clean air enters the cylinders.