Cattani Compressors deliver high performance and consistently deliver clean, dry, oil-free, hygienic air. To help achieve their high quality product the Cattani compressor tanks are internally coated with a certified food grade resin. Clean dry air not only protects your patients and the work you perform for them, but also your valuable equipment. As an added bonus of developing an oil free compressor, the patented, low friction internal components means that ongoing maintenance is reduced and longevity of the unit is increased.