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Air compressors, vacuum pumps, and blowers generate air pressure or create an air vacuum for operating pneumatic equipment and systems. Air compressors deliver compressed air for powering pneumatic tools and equipment. Blowers move air in pneumatic conveying, aeration, surface cleaning, and fume extraction systems. Liquid-ring vacuum pumps resist corrosion and erosion to withstand use in paper production, industrial power, mining operations, chemical processing plants, and other demanding applications. Vacuum pumps are used for applications such as degassing, vacuum packaging, refrigeration, and die casting.