Donaldson Company, Inc. manufactures and sells filtration systems and replacement parts worldwide. The company operates through two segments, Engine Products and Industrial Products. The Engine Products segment offers air filtration systems; exhaust and emissions systems; liquid filtration systems, including hydraulics, fuel, and lube systems; and replacement filters. It sells its products to original equipment manufacturers (OEM) in the construction, mining, agriculture, aerospace, defense, and truck markets; and to independent distributors, OEM dealer networks, private label accounts, and large equipment fleets. The Industrial Products segment provides dust, fume, and mist collectors; compressed air purification systems; air filtration systems for gas turbines; PTFE membrane-based products; and specialized air and gas filtration systems for applications, including computer hard disk drives and semi-conductor manufacturing. This segment sells its products to various industrial dealers, distributors, OEMs of gas-fired turbines, and OEMs and end-users requiring filtration solutions and replacement filters. Donaldson Company, Inc. was founded in 1915 and is based in Minneapolis, Minnesota.