Inquiry (采购产品): Exhaust system Hello, I am an electrical contractor that is currently working on a proposal for an automotive repair shop. Could you please inform me if the exhaust fumes from the vehicles are considered "explosive"? In other words, do the vehicle exhaust excraction motors need to be explosion proof? **** Hidden Message ***** John Axelson 7224 Winnetka Avenue N Brooklyn Park, MN 55428 USA Company: Mayer Electric Corporation Title: Project Manager Phone: 763 537-9357 Fax: 763-537-2309 E-mail: john@mayerelec.com **** Hidden Message ***** john@mayerelec.com