Working principle:

When the air compressor is running, the lubricating oil circulates in the system, and the lubrricating oil containing impurities enters the oil filter element. The filtering medium of the oil filter element intercepts, absorb, and screens impurities of different particle sizes according to its pore size and structure, allowing clean lubricating oil to pass through the filter element and enter components such as the main engine, while impurities are trapped on the surface of inside of the filter element.