What are key requirements for an approved spray booth? Prep station?
Spray booths for spray painting vehicles must be fully enclosed and be ventilated at negative pressure or up to 0.05 inches water gauge positive pressure. Booths must have seals on all doors and other openings and an automatic pressure balancing system. Prep stations for spray painting parts off of vehicles must have a full roof, at least three complete walls or side curtains (up to the roof). They must be ventilated so air is drawn into the prep station.