Rotary screw air compressor basics: These are ‘mechanical filters’ and do not remove oil vapors or chemical contaminants in vapor form. Refrigeration System Working Animation Refrigeration And Air Conditioning Air Conditioning System Valve At 40 db, the noise is low. Air compressor working animation . Air filter regulator are used to remove liquid water and particulate matter from compressed air sources. The compressed air / gas is then discharged through respective valves into the discharge port. An air compressor is a device that converts power using an electric motor, diesel or gasoline engine into potential energy stored in pressurized air.air compressors function based on a very simple principle. 60 db is considered a safe compressor noise level, while 85+ db is loud, and exposes the workforce to hearing impairment. It compresses and circulates the refrigerant and —when operating properly—ensures that the optimal temperature is maintained in the cabin of the car. How ...