Ventilation and IAQ Links Some level of ventilation is necessary within all homes. Ventilation can be provided through natural means (such as opening a window) or mechanical means (like installing a system with a heat exchanger an humidity control). This section gives further insight into various ventilation systems - providing information on cost, equipment types, and energy efficiency. Air Infiltration and Ventilation Centre
The Air Infiltration and Ventilation Centre (AVIC), inaugurated by the International Energy Agency (IEA), provides technical support to those involved in the research and development of ventilation technology. This site offers numerous publications for purchase, and a comprehensive FAQ. | 
