Compares the guidelines for indoor air quality and minimum ventilation rates outlined in the DIN 1946 and ASHRAE standards. Discusses air quality-controlled ventilation. Outlines the principles and standards governing both natural ventilation and controlled ventilation with heat recovery in residential buildings.
Describe tests carried out in an 850-seat auditorium of 4000 m3 to compare the readings of a CO2 indicator for controlling the ventilation air flow with the readings from a Stafa odour indicator. Supplies the results in diagrams and tables and discusses them. Notes the odour indication agrees well with the CO2 indication until a certain point when the CO2 concentration is decreasing. Notes this need not be a drawback.
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