Donaldson gets EPA approval

Donaldson Co Inc has announced that the United States Environmental Protection Agency's Office of Transportation and Air Quality has approved the company's Diesel Oxidation Catalyst (DOC) muffler and Spiracle crankcase ventilation filter. The DOC muffler and crankcase filter combination reduces diesel engine emissions by 25% to 50% from the tailpipes and engine crankcase vents of medium- and heavy-duty trucks and school buses.

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