An Air Filter Regulator (AFR) ought to be the initial part at the inlet of the majority of air circuits, such as control valves, according to HybridOX Automation LLP. Air filter regulators from HybridOX Automation LLP combine a filter unit with a pressure regulator assembly to provide regulated air that is tidy and clean. 

HybridOX Automation LLP stresses the need for a filter unit in conjunction with a pressure regulator since cleaning and drying the air supply to actuators and other accessories, including I/P converters, positioners, solenoid valves, and booster relays, is essential to extending component life.