A clear air system removes impurities from compressed air and protects equipment. The system is available in various types for removing moisture, oil, tar, odor, etc. It can supply any clear air, including semi-clean, oil-less, odorless, and super-dry. The main line unit has various air filter dryers for main piping of pneumatic circuits. The clean air system features various air filters, regulators, and lubricators for junction and terminal piping of pneumatic circuits.