This document is applicable to combined booths for the application of organic liquid coating materials by an operator with maximum drying temperature of 100 °C and deals with all hazards significant for combined booths, when they are used as intended and under the conditions foreseen by the manufacturer (see clause 4).To the extent of this document, a combined booth is considered an assembly of the following equipment:- forced ventilation by one or more fans, - ventilation air heating system (e. g. heat exchanger or burner), - power driven dampers, forced ventilation ducting, - dry air filtering and/or wet air washing systems, - automatic fire extinguishing