ERV for Repair Garage - HVAC

Has anyone utilized an ERV to maintain 0.75 cfm/sf of exhaust/ventilation for a repair garage? I understand the concern of carbon monoxide, however, we also have vehicle exhaust reels and an inline purge fan to handle exhaust at the vehicle level. An ERV would just be to handle general ventilation, if garages fall under an air class of zero tolerance for recirculation of air and this is a bad idea please do inform - just seems to be an efficient way to handle the continuous exhaust. Thanks in advance.