Minimising Pollution at Air Intakes

The quality of the indoor air is a crucial parameter in determining the health and comfort of the occupants of a building. Acceptable air quality is achieved by controlling possible contaminates and providing adequate ventilation. TM21: Minimising pollution at air intakes sets out guidance on the nature and characteristics of pollutants in the outdoor air and how these may impact on indoor air quality. In particular, it provides designers with the information that will help in locating ventilation inlets to minimise cross contamination from a range of polluting sources.