Donaldson Company, Inc. (Donaldson) manufactures filtration systems and replacement parts. It designs, manufactures and sells engine and industrial products. The company offers exhaust and emission systems; air filtration systems; liquid filtration systems; replacement filters; dust, fume, and mist collectors; air filtration systems and air purification systems. Donaldson products find application in gas turbines, computer hard disks drives and semiconductor manufacturing. It offers its products to OEM’s in agriculture, aerospace, construction, defense, mining and truck markets. The company has operations in US, Asia, Africa and Europe.