This paper introduces the theory and the application of the wavelet transform method to the study of fluctuating characteristics of airflows in building environments.

As part of a programme of research investigating thermal comfort on underground trains in London, BRE designed and constructed an experimental facility to be as realistic as possible for "passenger " subjects. Tests were carried out to investigate passengers' thermal comfort in realistic summer conditions. 574 subjects completed questionnaires , the data were included in the analysis, a model was derived to predict passenger response. As expected , temperature was the most important parameter influencing passenger comfort.

For that study , a survey was conducted within a period of one-year by delivering questionnaires to six hundred students in a chinese universtiy (Hunan Province), measurement on the spot and statistical analyses of collected data were made. Their conclusions are presented.

This paper reports on the relationship between dryness of the eyes and the presence of airflow around the eyes..The results of a CFD analysis show that a rising airflow around the body forms a coating over the surface of the face. That boundary layer disappears on the face when there is a horizontal room airflow which comes towards the face. Then measurement of the mass transfer coefficient of water on the human face and eye is made.

Physical IAQ parameters were sampled and results plotted in an IAQ study of a high-rise building in Hong Kong. Chemical samples were obtained and results indicated acceptable IAQ based on local and international guidelines. Common complaints of poor IAQ because of "stuffy air" and "odors" from unidentified sources have been recorded ever since initial occupancy. Source of odor was traced , it came from a poorly designed AHU drain-traps. A follow-up survey was performed. Results are compared and reported.

Physical IAQ parameters were sampled and results plotted in an IAQ study of a high-rise building in Hong Kong. Chemical samples were obtained and results indicated acceptable IAQ based on local and international guidelines. Common complaints of poor IAQ because of "stuffy air" and "odors" from unidentified sources have been recorder ever since initial occupancy. Source of odor was traced to poorly designed AHU drain-traps. A follow-up survey was performed. Results are compared and reported.

A re-analysis of a study was made : it concerned 10 groups of 6 female subjects performing office tasks at their own pace during several hours exposures to 6 different air quality conditions. That re-analysis showed that CO2 produced by subjects at each air quality level was affected by air-quality. A change in breathing pattern or a slow down of work rate in polluted air would reduce both metabolic rate and thus the CO2 production rate.

In the literature, different measuring methods around the odour intensity, the perceived air quality and the hedonic sensation of odours exists.The new two step approach for the assessment of the perceived air quality separates clearly intensity measurements of odours and acceptance methods. Thanks to it a possible link of the two measurement methods is shown.

The aim of this paper is to sum up the investigations on human responses to transient thermal environment and to predict the possibility of using the findings in practice.

Japanese government recommends to keep as effort for energy conservation, an office temperature setting of 28°C. in summer. But economic effects and office worker's productivity must be considered. Subjective experiments on the effect of moderately high