Abstract
People today spend 90% of their time in enclosed spaces so that they almost become prisoners of their own civilisation. But we have to allow fresh air into our working and living spaces if we want to feel well and breathe air that is not of deleterious quality. The use of energy for heating and/or cooling rises with the effectiveness of ventilation. There is thus a link between the concentration of pollutants overall in the air and the concentration of pollutants in the breathing zone. The consequence of this is that air quality and the efficient use of energy conflict.
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