Many employees spend most of their day with others in office blocks, whether in meeting rooms, individual offices or open-plan spaces. Naturally they want to work in a pleasant and productive atmosphere. In addition, office buildings are always a mirror for corporate culture. These individual requirements make stringent technical and design demands on the quality of the environment. In modern offices and administrative buildings, the aim is that employees should find the optimum conditions for the efficient performance of their work. Room conditions, in particular temperature and humidity, play a key role here.