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Decypol Beax.png

The Decipol is a unit used to measure the perceived air quality.[1] It was introduced by Danish professor P. Ole Fanger;

One decipol (dp) is the perceived air quality (PAQ) in a space with a sensory load of one olf (one standard person) ventilated by 10 L/s. It was developed to quantify how the strength of indoor pollution sources indoors influence air quality as it is perceived by humans.[1]


  1. ^ a b Fanger, O. P.: Introduction of the Olf and the Decipol Units to Quantify Air Pollution Perceived by Humans Indoors. In: Energy and Buildings. 12, 1988, 1-6