Donaldson Company, Inc. manufactures and sells filtration systems and replacement parts worldwide. It operates through Engine Products and Industrial Products segments. The Engine Products segment offers replacement filters for air and liquid filtration applications, air filtration systems, liquid filtration systems for fuel, lube and hydraulic applications, exhaust and emissions systems and sensors, indicators, and monitoring systems. This segment sells its products to original equipment manufacturers (OEMs) 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; gas and liquid filtration for food, beverage, and industrial processes; air filtration systems for gas turbines; polytetrafluoroethylene membrane-based products; and specialized air and gas filtration systems for applications, including hard disk drives, semi-conductor manufacturing and sensors, indicators, and monitoring systems. This segment sells its products to various 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.