Air Receiver The air receiver plays a very important role in compressed air system with multi-purposes by value of its design and the right air receive can also enhance the service life of compressor. Purpose 1. The air receive stores the pressurized compressed air. 2. It helps to maintain constant pressure at downstream 3. It cools the compressed air 4. The air receiver helps to separate oil and moisture from the compressed air. 5. It allows the air compressor to have an optimum level of rest.