18-28-403.9 Exhaust through direct openings or ducts.

   If a mechanical ventilating exhaust system is required in any room, air may be exhausted to corridors or uninhabited rooms through direct openings or horizontal ducts not to exceed 5 feet (1525 mm) in length if all of the following requirements are met:

   1.   The room being supplied does not contain dangerous or noxious fumes, odor or dust; and

   2.   Adequate relief openings for mechanical exhaust exist in such corridors or uninhabited rooms.