The Quiet Flow 4710 SQ Air Compressor is designed to be 1 of the quietest air compressors in the industry having only 65-decibels of sound. The Quiet Flow Series is specifically designed for the DIY and Homeowner customer. The powerful 1.0 HP motor operates at only 1680 RPM creating less noise and less wear. The Oil-Free Dual Piston Pump System is engineered for high performance and durability. The CAT-4710 SQ Air Compressor has a Oil-Free Dual Piston pump designed to have a life cycle before wear of 1000 Plus hours compared to other brands of 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 4.7 Gal. Steel Air Tank is Lightweight (43 lbs.) and very easy to transport. This air compressor is ideal for anyone working inside where noise is a major issue.