People and ventilation - considerations with regard to the economical application of engineering methods for ventilation. Mensch und Raumluft - Gedanken Zum wirtschaftlichen Einsatz luftungstechnischer mabnahmen.

Defines requirements for suitable indoor air quality and examines the technical and economical possibilities of suitable methods of ventilation. Differentiates between densely populated places (meeting places) and others of low occupancy, such as offices and living rooms. Finds that the most efficient way of satisfying hygiene requirements is by controlled air renewal, and that to achieve this mechanical ventilation according to DIN 1946 should be installed.