To investigate the potential energy and indoor environmental performance of natural and hybrid ventilation alternatives in low-to mid-rise US commercial buildings in a variety of US climates was the aim of that study. The hybrid ventilation systems appeared to provide better IAQ control in most but not all studied cases .

For that paper, the literature on the effects of indoor environment on health and performance has been reviewed and existing data has been used, when possible, to develop some initial models. Quantitative relationships between ventilation rates and short-term sick leave, ventilation rates and work performance, perceived air quality and performance, temperature and performance, and temperature and SBS symptoms are presented too.

An epistemic approach for assessing an acceptable office IAQ against certain indoor air pollutant exposure limits is proposed for that study. Thanks to the prior understanding of failure rates of IAQ determimed from a number of extensive survey studies, a sample test result of pollutant levels has been quantified along with the uncertainties of different sampling schemes and the probability of satisfactory IAQ for an assessed air-conditioned office. The accuracy of the failure rates has been improved by the application of sampling correction factors and Bayesian statistics.

The main objective of that study was to determine to which extent Indoor Air Pollution from cooking represent a serious problem that need household energy intervention. The second objective was to pilot survey and monitoring instruments in the design and evaluation of household energy interventions. Measurements were made in 120 households, a questionnaire on socioeconomic parameters, house and kitchen characteristics and ventilation practices was submitted. Results are presented along with the authors conclusions.

The aim of that study was to monitor the indoor air of two public libraries in Sao Paulo to measure the particulates matters (PM10 and PM2.5). A small volume sampler, a vacuum pump, a flow metre and membranes were used to collect the particulate material. Results and conclustions are presented.

For that study, the mass of indoor air particulate matter (PM10 and PM2.5) in five elementary schools in Istambul has been determined along with its elemental concentration. The results and conclusions are presented.

That study was performed in the Chinese Hunan University. During one month, thermal comfort was measured in 25 naturally ventilated classrooms equipped with ceiling fans. 1273 students responded to a questionnaire on their perception/sensation of the indoor climate. Most of them found thermal satisfaction though indoor air temperature and relative humidity varied a lot. The results are different from that found in other similar thermal comfort studies, it is attributed to the different climate and to the adaptation and tolerance of students too.

For that study, personal and area samplings were conducted in 7 photocopy centers during summer and winter seasons in Taiwan. IAQ was investigated to evaluate the human health risk following inhalation exposure. Benzene, Toluene, Ethylbenzene, Xylenes, and Styrene (BTEXS) measurements were carried out. The lifetime cancer and noncancer risks for workers exposed to VOCs were assessed too. Results are presented.

The level of indoor bacteria can be used as a referent to identify the performance of an HVAC system. For that study, a statistical model is proposed for the obtention of the office probable failure rate over a region. From a dataset of levels in 290 Hong Kong offices , model parameters have been determined. Another district survey in nine major Hong Kong commercial districts allowed the validation of the model. The comparison of the observed office failure rate of each district with the corresponding model estimate was carried out and consistent results were found..

The electrical energy needed for ventilation fans and air handling units (AHU) plays an increasing role in the energy demand for buildings. Recent studies show that the electrical energy consumption can rather easily be reduced from the "traditional" level (between 5 and 10 kW/m3s) into a modern level (2 to 2,5 kW/m3s) with proper design and installation. Even lower levels are technically possible, but not yet widely economically feasible. Several countries have already set, either as requirements or as recommendations, maximum target values for SFP.