In a painting plant, besides a uniform air flow, the set temperature and humidity are also relevant. PREBAS therefore supplies compact ventilation units in cooperation with various manufacturers, which are adapted to the air volume requirements of laboratory paint booths. When installed, the ventilation units require only a few square meters of floor space and supply the paint booth with fresh air conditioned to e.g. 22°C and 65%r.H. almost independently of the outside conditions. The components of the ventilation system are standardized and can be maintained in-house or by PREBAS during the maintenance of the paint shop.