The filter element is the heart of the filter, as the name implies, the filter element. The main principle of the filter element is also the main principle of the filter. It is the purification equipment needed to purify the original ecological resources and the reuse of resources. The filter element is generally mainly used in filtration industries such as oil filtration, water filtration, and air filtration. Removal of a small amount of impurities in the filter medium can protect the normal operation of the equipment or the cleanness of the air. When the fluid passes through the filter element with a certain precision in the filter, its impurities are blocked, and the clean fluid flows out through the filter element.