Reviews one of the most comprehensive sets of regulations to be published covering indoor climate and ventilation in buildings.

Describes the "olfbar", first presented at the "Healthy Buildings '88" conference. At the bar, different qualities of air may be perceived. It is intended to demonstrate that air polluted by materials or components in buildings may often not be acceptable for human beings. These materials and components, ignored in ventilation standards all over the world, pollute the indoor air and make air stale, stuffy and irritating.