What are the classifications of oil filters?

[StEmma]

Oil filters can be classified into full-flow and bypass types. The filtration principles of oil filters can be divided into three categories: mechanical separation, centrifugal separation, and magnetic adsorption. Mechanical separation commonly includes mesh filtration, where the filter material has small holes of a certain size on its surface. Solid particles in the oil larger than these holes are trapped on the outer surface of the filter material. The oil filter is one of the four major filters, with the other three being the air filter, cabin air filter, and fuel filter. Also known as the oil element, the oil filter is used to remove impurities such as dust, metal particles, carbon deposits, and soot particles from the oil, thereby protecting the engine from wear.