About this Site

This site has been developed and is operated by Martin W. Liddament. Its purpose is to disseminate information about ventilation, air change and air infiltration, and its impact on indoor air quality, health and energy. It is also intended to develop a comprehensive but easy to follow tutorial on ventilation and related calculation methods. 

Caution - Disclaimer: Wherever possible, information is drawn from peer reviewed material and is fully referenced. However, no responsibility is taken for the accuracy of the information provided or its suitability for any particular application.  

Martin Liddament is the former Head of the International Energy Agency's Air Infiltration and Ventilation Centre. He held this position for 13 years between 1987 - 2000. Prior to becoming the Centre's Head, he joined the AIVC as its Senior Scientist in 1980. During his 20 year association with the International Energy Agency, Martin Liddament has authored a wide range of technical publications including:

• A Guide to Energy Efficient Ventilation;
• Air Infiltration and Calculation Techniques - an Applications Guide.

These publications are widely used as university texts. He is also co-author of the UK CIBSE Part A Guide on Air Infiltration and is the author of AIDA- the Air Infiltration Development Algorithm.

Martin Liddament has lectured regularly on ventilation related subjects throughout the world. He is a graduate of Applied Physics at the University of Lancaster, UK, (1971) and received his doctorate from the Simon Engineering Laboratories, Victoria University of Manchester, UK, (1975). He is a Member of the American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) and is an active international committee member for ventilation. In addition he has recently been appointed Editor of  "Ambient Energy" - the UK based quarterly international journal on renewable energy and is co chairman of the World Renewable Energy Congress Committee for Low Energy Architecture.

Martin Liddament left his International Energy Agency activities, at the end of January 2001, to establish VEETECH Ltd.  Through VEETECH he now published and edits the International Journal of Ventilation

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