Ventilation strategies and occupants' behaviour.

Each occupant in a room should be able to control his own indoor environment. Individual control can be achieved in many ways: from simple window-opening to automatically arranged personal mini-environment. Individual control is not utilized effectively today. This is partly caused by lack of proper information, and partly by the fact that builders pay more attention to construction than to use and operation. Even technically complicated systems can be easy to operate - what is needed is sufficient, but not too difficult user information. In this paper, practical examples of user-friendly ventilation in residential and office buildings will be analyzed. Information problems, technical limitations and consequences of various individual control strategies will also be discussed.