-Quiet by design with a low sound enclosure and innovative cooling fan, the CP's QRS series offers the lowest noise levels available. Exceptional performance combined with efficient rotary screw technology and a high efficiency TEFC motor, the QRS offers low energy consumption, reducing your monthly electric bill. With its compact space saving design and quiet operation, the QRS series can easily be installed just about anywhere in the shop. With its simple compression concept and continuous contact cooling, the QRS series can operate fully loaded-24 hours a day / 7 days a week. There are no wearing parts, the CP QRS offers increased reliability, reduced maintenance and trouble-free operation. No need to worry about rings, valves, rod inserts, bushings and pistons. Extended service intervals save time and money. Convent service panel with easy access to internal components.