For that study CFD models have been developed to simulate the transport of infectious droplets and bioaerosols in a hospital ward. Those models will help for the design and control of a local exhaust ventilation (LEV) system. Details of the CFD models are reported in this paper along with the analyses of the distribution and suspension time of droplets and bioaerosols with respect to their size, emission direction and emission speed.

In order to study the impact of the outdoor air on the indoor environment, suspended particulate matter were simultaneously sampled indoors and outdoors of a typical residential house in the Al-suwayq area. The resullts showed that the concentration of the indoor suspended particulate matter was heavily dependent on outdoors.The information obtained in this study appears to be the only data for indoor atmospheric dust collected in Oman.

A subjective study is reported in that paper concerning a field environmental chamber (FEC) equipped with a displacement ventilation system (DV). The aim of that work was to investigate effects of temperature gradient and room air temperature on local discomfort due to air air movement at different thermal sensations.

That study proposes an Express Assessment Protocol (EAP) to quantify IAQ problems by assessing the "dominant" contributors to unacceptable IAQ. That EAP could be a useful tool for policymakers, building owners and professionals to quantify IAQ problems in offices and to make improved decisions.

The installation of upper-room ultraviolet germicidal irradiation (UVGI) devices in ventilated rooms can reduce the transmission of infections by an airborne route. That study investigates the relationships between the lamp location, the lamp power, ventilation power and room heating in a small ventilated room. The results are presented.

To investigate the effect of the headroom on de displacement ventilation (DV) system, a numerical simulation applying a validated CFD model was used. The simulation and comparison of two different headroom heights in a space was carried out. The results are presented.

The ventilation system of an operating theatre in an hospital minimises the risk of airborne infection. In this paper, the integrated effect of medical lamp position and diffuser discharge velocity on ultra-clean ventilation performance in an operating theatre is reported. Their use appears to slightly affect the thermal comfort environment , but it can have a serious effect on the movement of infectious particles that can increase the cross infection rislk.

The roles of CFD in building design are presented in this paper such as designing a thermally comfortable, healthy and energy-efficient building. The developing trends in applying CFD to building design are analyzed by reviewing the literature. in all the proceedings of the International Conference on Building simulation.

Results of 3 years of measurements in the chemistry department building of the university of Athens are summed up in this paper. Levels of CO, CO2, SO2, NO2, Cl2, HCHO, O3 and TVOC werre measured in laboratories, classrooms and offices. A questionnaire survey was conducted too concerning working conditions and perception of IAQ. Results and comments are presented.

The aim of the European project HOPE (Health Optimisation Protocol for Energy-efficient buildings) is to demonstrate the energy-efficient buildings can be healthy and comfortable too for their occupants. Measurements were carried out to evaluate indoor environmental quality. And questionnaires were filled by the occupants. In U.K.