Abstract: A vacuum-coating apparatus has the vacuum-coating chamber mounted on an upright housing part of the upper end of which the suction generator is provided and whose lower end communicates with a horizontal housing part containing the coating-liquid supply. The liquid circulator includes a cartridge filter for removing solids from the liquid which is fed to the coating chamber and which has a conical easily-replaceable filter unit. The air from the changer is directed downwardly along an adjustable air-control plate on the underside of an air-guide plate and then upwardly around an edge of the air-control plate.