Chao Tan is a faculty member of the Department of Mechanical Engineering and the Department of Civil & Environmental Engineering at the University of Waterloo. He received BSc and MSc degrees in 1996 and 1999, respectively, from Tsinghua University (Beijing) and a PhD degree in 2004 from the University of Illinois at Urbana-Champaign. He was a faculty member at the University of Calgary, from 2004 to 2010. His areas of research and publication are in aerosol technology, air pollution control, green energy and indoor air quality. He is a member of Editorial Advisory Board of The International Journal of Chemical Reactor Engineering and the international journal of Sustainable Environment Research. He has served on the ASME Technical Committee of Air Pollution Control, Technical Advisory Committee of Canadian Environmental Technology Verification Program and Indoor Environment Research Program Technical Advisory Committee of the National Research Council Canada.