The article compares the energy consumption linked to different ventilation systems of an office room (22 m2, 3 m high, occupied by 2 persons from 8 a.m to 6 p.m, internal heat source 15 W/m2). Those systems are : air renewal through windows opening, classical control mechanical ventilation with heat recovery, high energy efficient control mechanical ventilation with heat recovery. The mechanical systems provide 40 m3/h/person (air change rate 1.2 vol/hr).

A field experiment was conducted in a primary school in 3 steps : first Personal Air Quality (PAQ) was assessed with the used bag-filters present in the air supply path, then when the bag filters had been removed, and finally when filters were refitted. The results showed that PAQ was better when the filters were removed, the author find it urgent to improve standards and filtration products for comfort ventilation.

A realistic simulation experiment was conducted on students in a climate chamber, the objective of the laboratory experiments was to evaluate the quantitative effects of the air quality and thermal environments on learning performance High-ventilation environment (all outdoor air) and low-ventilation environment (100 % returned air only) were tested. The results were consistent with those found with the field intervention survey.

A statistical interpretation of nearly 8 000 individual questionnaires on perceived indoor environment has been made. Results show several correlations found between comfort complaints or presence of SBS symptoms and the characteristics of offices and apartments indoor environment.

A general analysis of technologies aiming at improving indoor air quality in Polish schools is described in this paper. A case study shool was selected for the comparison of selected technologies for ventilation system.

In this paper a number of comfort indicators required for the assessment of indoor environmental building performance are presented, they both include temporal variation and the degree of discomfort perceived by the occupant. A test case using thermal building simulations is applied on a ventilated office building

For that study indoor and outdoor temperatures were recorded (respectively every 20 s and 1 minute) for 10 apartments houses in Japan during summer-autumn with the intention to investigate the relationships between ratios of air conditioner use and window opening. The method and results are presented.

In this paper the results of the "Integral Design Methodologyy" workshop for sustainable comfort systems are presented. The objective was to reduce failure costs and to improve design quality for ventilation concepts.

The ventilation of two newly built school buildings in Finland are compared in that study, one of the experimental building is equipped with fan assisted natural ventilation and the other one with mechanical supply and exhaust ventilation system with heat recovery. The results are presented.

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.