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In 1915, a young Frank Donaldson Sr.—then a Bull Tractor Company salesman—visited a customer whose tractor kept breaking down in his dusty field. Frank hand-fashioned a simple air cleaner to protect the engine and invented the world’s first effective air cleaner for a tractor engine.
Understanding the value in his idea, the young salesman-turned-inventor introduced his air cleaner to the market, and Donaldson Company was born.
Over 100 years later, Donaldson continues to innovate, using our filtration technologies and processes to provide customers with the solutions they need.
Our customers are as varied as the industries they represent, and include aerospace, agriculture, construction, food and beverage, manufacturing and transportation fields. You cannot always see our products and technologies, but they are at work in hundreds of ways, from bulldozers to hearing aids, and from airplane cabins to grain processing facilities.