The California Air Tools Ultra Quiet and Oil-Free Air Compressor is designed to be one of the quietest air compressors in the industry at a noise level of just 60 dB. The powerful 1.0 HP (SP-9413) motor operates at only 1,680 RPM, creating less noise and less wear. The new SP series of Ultra Quiet Air Compressor Motors has been designed to increase duty cycle and allow for longer continuous run times. The oil-free dual piston pump system is engineered for high performance and durability. This pump is designed to have a life cycle before wear of 3,000+ hours compared to other comparable air compressors with life cycles of 500 hours or less. The oil-free pump allows for use in a variety of temperatures and uneven terrains. The 2.0 Gal. aluminum (rust-free) air tank is lightweight (35 lbs.) and very easy to transport. This air compressor is ideal for anyone working inside where noise is a major issue.