Filter element is a professional term for filtration and purification function. It is a simple device for the purification of raw fluid resources and resource separation. Now filter elements are mainly used in oil filtration, air filtration, water filtration and other filtration industries.

The filter element separates solid particles in liquid or gas, or fully contacts different material components to speed up the reaction time, which can protect the normal operation of the equipment or the cleanliness of the air. When the fluid enters the filter element with a certain specification filter, its impurities are blocked , while clean fluid exits through the filter element. The liquid filter element makes the liquid (including oil, water, etc.) clean the polluted liquid to the state required for production and life, that is, to make the liquid reach a certain degree of cleanliness.