Refrigerated air dryer is a known as an effective type of compressed air dryer, suited for the drying of compressed air. It is used to treat the compressed air that holds water, coming from the air. Its utilization is needed for the protection of piping, equipment and tools. Refrigerated air dryer must be maintained with cautions. It is required to clean the condenser. The small plates (fins) of the dryers are sensitive. Its cleaning and dust removal is possible with the help of a steel-brush. Its surface allows it to scrape off the dust with ease.