The objective of that study is to analyze the influence of outdoor air and sypply air system on particle levels, along with the effect of indoor sources on them. Particle measurements were carried out in three different buildings : a school, an office, and a single-family house in Northern Finland.

For that study two different rectangular test chambers of different size(9.37 m3 and 0.14 m3) were realised, in order to analyze the behaviour of fine particles deposition in rooms and to show the influence of airflow velocity on it.. Several experimental measurement results are presented

This objective of that study is to clarify the numbers and species of bacteria and fungi present on the surfaces of air filters at various temperatures and relative humidity. The comparison of different types of adherent bacteria and fungi in the surface between enzyme and control filters is made too.

Field measurements have been carried in commercial kitchen to assess the performance of ventilated ceiling system, hanging the combination of ventilation rate and operating electrical appliances in order to find the best control method to realize energy consumption.

In Korea, "Ondol" a radiant heating system is widely used but it is not satisfying with ventilation, so this study aims at developing a ventilation system to improve thermal environment and ventilation rates.

Typical modes of air distribution such as ceiling supply and under-floor supply systemshave been investigated by using a breathing thermal manikin in a field environmental chamber. The two systems are compared , conclusions and recommendations are presented.

The objective of this study is to evaluate the effectiveness of (UFAD) system in controlling thermal comfort and indoor air quality in office building. In that aim environmental parameters have been measured, concentrations levels of pollutants have been monitored, the air exchange rate and percentage of oudoor air have been studied, and the results compared with recommended standards.

The cooling effect of a Cool chair is examined in this paper with is its ability to affect the user's psychology thanks to its thermal adjustibility. The air is drawn into the seat and backrest and can be blown out through the armrests. The amount and the direction of the airflow can be easily adjusted. The experiment , data analysis and conclusions are presented.

How the use of ventilation equipment influences humidity and the thermal environment in a bathroom is the aim of this paper. Experiments and analysis show that a difference in ventilation quantity may influence the amount of moisture production.

In order to tally with the demanding requirements placed on compact ventilated units (CVUs), a testing facility has been developed. It is described in this paper.