Plant in which coating is sprayed. It can be open (if without roof and walls) or closed (if provided only with opening for the passage of work pieces). According to the direction of airflows, it may have vertical, oblique or horizontal ventilation. Moreover, it can be air-conditioned or pressurised (see Pressurisation).

Based on the removal of excess paint particles, it can be humid (e.g. water screen) or dry (e.g. filters).