An oil mist separator is responsible for recycling the oil that lubricates the compression chamber and for ensuring that oil particles are not expelled via the exhaust. It consists of an oil separating chamber, an oil filter, and an exhaust filter (also known as oil mist filter). These drawings are for illustrative purposes only and do not show all details. The pumped medium containing oil particles enters the oil separating chamber (1). Due to gravity, the oil drops to the bottom of the chamber (2), and is pumped into the oil filter through the suction of the compression process (3). Unwanted particles, such as dust and debris, are removed. The pumped medium continues towards the exhaust filter (4) installed upstream of the outlet. It captures and separates oil mist from the pumped medium before it is expelled through the exhaust. The filtered oil is sent back into the compression chamber through an oil return line (5) and an oil supply line (not depicted in the illustration above) which are connected to the oil inlets.