4Th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings (Iaqvec 2001), Date: OCT 02-05, 2001, Location: CHANGSHA, PEOPLES R CHINA, Sponsors: City Univ Hong Kong, Minist Educ, K C Wong Educ Fdn, Broad Air Conditioning Co Ltd, Int Energy Agcy, WHO, Int Council Building Res Stud & Documentat, Amer Soc Heating, Refrigerating & Air-Conditioning Engineers, Int Soc Indoor Air Quality & Climate, Air Infiltrat & Ventilat Ctr, Amer Ind Hygiene Assoc, Chartered Inst Building Serv Engineers, China Assoc Refrigerat, Comm Heating, Ventilat & Air Conditioning, Chinese Architecture Assoc, Hong Kong Inst Engineers, Natl Resource Canada, Building Grp, CANMET Energy Technol Ctr, Hunan Univ