Disposing of compressed air condensate is a major environmental concern. This oil/water mixture is classified as hazardous waste and cannot be discharged into municipal wastewater systems unless the oil and contaminants are removed. The Kaeser Condensate Filter (KCF) is designed to filter-out oil and other contaminants making the water safe for disposal. The key to the KCF function is the three-stage, self-contained plastic filter cartridge, which is extremely convenient for replacement and disposal. The unit requires no electricity and little maintenance.