The California Air Tools 200CR Ultra Quiet & Oil-Free Continuous Air Compressor Motor/Pump is designed to be one of the quietest motors in the industry having only 77 decibels of sound. The powerful 2.0 HP motor operates at only 1700 RPM creating less noise and less wear. The Oil-Free Dual Piston Pump System is engineered for high performance and durability. Up to 8 hours of continuous running at 90 PSI and 12 hours at 40 PSI. The Dual Piston Pump System produces more air more quickly. The 200CR motor/pump is tested for a minimum life of 5000 hours before wear.