The California Air Tools Powerful 4.0 Hp Ultra Quiet & Oil-Free Air Compressor with 98% Air Drying System and Automatic Drain Valve (220v 60hz) stands as one of the quieter compressors in the industry, with a noise level of just 75 decibels. Ideal for noise-sensitive environments, this super quiet air compressor is perfect for anyone working inside (office, shop, store, warehouse or home) where noise is a major issue. It is powered by a powerful 4.0 HP motor that runs at a low 1680 RPM, offering powerful performance with minimal noise and wear, thereby extending its lifespan and boosting efficiency. PDP performance range (-20' F. to -51' F.). Air Quality: ISO 8573 - Class 2.3.1 Featuring an oil-free dual piston pump system, this oilless air compressor is engineered for high performance and lasting durability, with a life cycle surpassing 3000 hours—outperforming similar models. With a maximum pressure of 125 PSI and weighing 176 pounds, this air compressor is also equipped with dual pressure gauges and one industrial "Push to Connect" quick connector for enhanced usability and efficiency. The 98% air dryer is designed to remove the water vapor from the air to protect tools and machinery; the aftercooler is a heat exchanger for cooling the discharge air from the air compressor. The California Air Tools EZ-1 Automatic Drain Valve has been designed to eliminate manually draining your air compressor air tank. Ideal for Dental, Milling, Surgical, Manufacturing Clean Rooms, Restaurant and General Engineering Applications. At California Air Tools, we pride ourselves on delivering innovative, top-tier technology in air compressors that meet the needs of both professionals and hobbyists without compromising on power or user-friendliness. Elevate your workspace with the California Air Tools Powerful 4.0 Hp Ultra Quiet & Oil-Free Air Compressor with 98% Air Drying System and Automatic Drain Valve (220v 60hz). Discover the bliss of superior performance coupled with whisper-quiet operation, designed to enhance your efficiency and comfort.