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.

Two experimental studies were carried out to examine the influence of indoor air carbon-dioxide pollutant concentration on human well-being and the intensity of mental work. Laboratory measurements of CO2 concentrations from 600 up to 5000 ppm were set .The results showed that CO2 concentration over 3000 ppm makes the well-being and the concentration of the subjects decline.

That study shows that positive application of the principal component approach to analyse the complex subjectives responses of subjects. This approach allows a detailed evaluation of effects of outdoor air supply rate on each subjective variables, but also the impact on different perceptual mechanisms.

A group of 24 tropically acclimatized subjects were tested to explore the thermal and air movement perception after 90 minutes of facial exposure to local air movement, at different temperature conditions.The aim of that paper is to identify when human perception of thermal comfort reaches steady state and to study whether there is a preference for air movement after 90 minutes facial exposure to local air movement.

In this paper the review of literature dealing with exposure-response relationships between the concentration of pollutants and the perceived air quality is done. The summary of the existing data shows the discrepancy in ventilation requirements to get a certain level of perceived air quality for emissions from different building products.

This paper reports the results of field measurements carried out in a classroom to evaluate the effect of the air quality and thermal environment on learning performances, with varying environmental conditions. Simulations in climate chamber were made too, but paper reports the results of the field intervention survey only.

For that study, experiments with task ambient conditioning systems (TAC) have been carried out, to investigate the effects on thermal comfort and productivity of workers. . With that system, a pressurized air is blown from the floor through outlets at the floor and near the desks.The air change efficiency of that system that provides fresh air at the occupants' breathing zone has been evaluated too, using SF6 tracer gas. Conclusions are presented.

Domestic air cleaner are expected as one of the effective technique for the removal of chemical substances. In this study, the comparison with the prediction model is done, and the results proved that the accuracy of this predicting method is very high. The formaldehyde removal rates of the air cleaner with constant emission test were quantitatively determined.