Abstract: The exhaust system for a drive-thru bay has an elongated suction tube member at one side of a driveway that is parallel to and elevated from the driveway. Wing members are attached to the elongated suction tube to form a channel member with an open side that faces toward the driveway. Apertures through the base of the channel connect the channel to the suction tube. A blower inlet pipe connects the suction tube to a blower. A discharge pipe carries gas away from the blower and discharges the gas into the atmosphere. Filters and converters can be provided in the inlet pipe or the discharge pipe. A pipe with inlet apertures rings a service opening and is connected to the blower inlet.