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Donaldson Company, Inc.



Donaldson Company, Inc. is a manufacturer of filtration systems and replacement parts. Donaldson's product mix includes air and liquid filters, and exhaust and emission control products for mobile equipment; in-plant air cleaning systems; compressed air purification systems; air intake systems for industrial gas turbines, and specialized filters for diverse applications, such as computer disk drives and semiconductor processing. Products are manufactured at more than 30 facilities worldwide and through three of the company's joint ventures. Donaldson has two units, Engine Products and Industrial Products, which are involved in the design, manufacture and sale of systems to filter air and liquid, and other complementary products. In March 2007, the company acquired Aerospace Filtration Systems, Inc., from Westar Aerospace and Defense Group, Inc.


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