1. Environmental low noise oil free 2. Beautiful appearance 3. Small ,light and simple structure 4. Continuous working for 2000 hours in free of trouble. Application: Widely used in medicine, chemicals, foodstuff, printing, book binding, dairy farming photogravure, plastics forming, etc. Characteristics Description: 1. As it does not contain any oil vapor, the pump vicinity and the processed products are clean and unsoiled. 2. Equipped with the suction filter and exhales muffle, easy to fix. Carton sealed packaging.