Oil mist separation requires the use of oil mist purification equipment. Its principle is that when the controller of the oil mist purification equipment is powered on, a strong static pressure is generated to force the oil mist to be directed into the oil mist purification equipment. Under the action of the wind wheel in the oil mist purification equipment, collisions occur, causing small particles to aggregate into controllable small particles, achieving the separation of air and oil under the obstruction of efficient mist absorbing materials.