How do you vent a garage that is just one large open area without an actual attic?

Air Vent cannot say with confidence that the attic ventilation products designed to vent attics can handle an entire garage.

With regard to a garage that is one giant open area without an attic, the ventilation system is being asked to tackle a lot more space/area that it may not be sized to handle. Air Vent cannot say with confidence that the attic ventilation products designed to vent attics can handle an entire garage. Air Vent is also not confident it's 100% a suitable application. Questions to consider: Where would the intake vents be positioned to feed the exhaust vents? What's taking place inside the garage that is suddenly going to have airflow?