Section 1704
SECTION 1704. Ventilation. (a) General Mechanical ventilation shall be provided direct to the exterior of the building. The mechanical exhaust system shall be designed to move the air through any portion of the paint spray area at the rate of not less than 30.00 lineal meters per minute. The blades of exhaust fans shall be constructed of non-ferrous material and shall be mounted in such a manner as to prevent contact with the exhaust duct. The motor shall not be mounted in the spray booth or the duct system and belts shall be enclosed where they enter the booth or duct system. (b) Exhaust Ducts. Exhaust ducts shall be constructed of steel having a thickness not less than the values set by the Secretary. The discharge point for ducts in a paint spray booth shall be not less than 2.00 meters from the adjoining combustible construction nor less than 8.00 meters from adjoining exterior wall openings: Except, that the discharge point for exhaust ducts is not regulated in a waterwash spray booth. CHAPTER 18GLASS AND GLAZING