Status of international research activities in the field of air infiltration in buildings. Stand der internationalen forschung im bereich luftaustausch in gebauden.

Describes international research activities in the field of air infiltration, based on a recent research survey. Projects include research on indoor air quality and comfort, comparison of procedures for calculating air change rates in buildings, compiling data on air flow and pressure distributions around buildings, and measurement techniques. At the end, concentrates on Swiss projects.