An oil filter is a crucial component of automotive and industrial machinery, designed to remove contaminants from the engine- or hydraulic system-driven lubricant. Its primary function is the separation of foreign bodies and, in addition to fat particles to prolong life will continue on each daily machine. Today's oil filters, on the other hand, are constructed of advanced and high-strength materials, many with a multi-layered filtration system able to trap even microscopic contaminants while still allowing free passage of oil. Whatever it may be, the oil filter has widespread applications from passenger vehicles to heavy machinery where clean oil is an integral part of ensuring efficient operation and extending the life of critical components.