Air quality control: measurements and experiences. Regelung der luftqualitat.

Presents a control system for mechanical ventilation of large rooms such as meeting rooms, cinemas, department stores, etc, based on air quality. Gas sensors are used to measure the pollutant levels and regulate the air flow in the room in relation to the number of people, level of tobacco smoke and other pollutants. The CO2 levels are also recorded. The resulting energy saved is given for three Norwegian buildings.