As part of the IEA Research Program Annex 18 "Demand Controlled Ventilating Systems" were tested in a one-family testhouse in relating to energy and ventilating specific aspects. The investigation should show whether demand controlled systems are useful in dwellings or not. Following items were checked: * Infiltration characteristics of the testhouse * Ventilation characteristics of different systems like temperature distribution, air movement, ventilating efficiency, air exchange and air quality.
For more than a century air quality standards have been based on the Pettenkofer Theory, which regards the human being as the decisive source of air pollution in residential and community building. Regrettably these standards have not prevented many buildings from having serious air quality problems. Presented here is a new philosophy of ventilation, which takes into account pollution sources other than human contiminants and tobacco smoke, e. g. construction materials, furniture, and utilities. Use is made of the new quantities for measuring perceived air quality, the olf and the decipol.
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