SDU-C series air compressors provide oil-less & dirt-free purified compressed air to meet your needs. The sturdy frame-structured enclosed cover is featured with high-efficient cooling air circulating system and noise-proof material to substantially reduce the noise & vibration in operation, and provide quiet working environment. The dependable oil-less silent model will deliver clean air and greatly reduce the noise level. In addition, the compact design, and user friendly interface, combined with the optimized controller can monitor the working status and improve its reliablity.