1. Knocking method, take the filter element out of the housing and tap the end face of the filter paper to make the dust fall off. Do not touch the outer surface of the filter element to avoid damaging the filter element.
2. Air blowing method, that is, use compressed air to blow the air in the filter element to blow away the dust. To prevent damage to the filter paper, the compressed air pressure should not exceed 0.2~0.3MPa.
During use, the air filter element should be cleaned regularly in accordance with vehicle maintenance regulations to avoid increasing air intake resistance, reducing engine power, and increasing fuel consumption due to excessive dust attached to the filter element. If the filter element is damaged, it should be replaced in time.