Correlations between indoor ozone concentrations and the emission rates of oxygenated compounds are examined in this paper. Data collected in an occupied, low-polluting office at two different ventilation rates (1 h-1 and 3 h-1) with and without common indoor sources are re-analyzed reporting that with sources present the measured total emission rate was about 5% higher at the higher ventilation rate.
The results suggest that an increased outdoor-to-indoor transport of ozone gives larger emission rates of oxygenated compounds at larger ventilation rates.

Homes with natural ventilation is a predominant type of residential buildings in taiwan . As high microbial concentrations have been reported.in those buildings, the authors have studied the effects of ventilation efficiency on indoor/outdoor levels of airborne microbes in 44 homes with natural ventilation.
Indoor and outdoor airborne bacteria and fungi were collected and the air change rate (ACH) was measured by tracer gas concentration decay method.

A field campaign lasting June to October 2004 has been organized in the CSTB experimental house MARIA. It aimed at documenting the potential impact of outdoor ozone and NOx on indoor air quality, . Selected new building materials were installed in a test room where ventilation conditions are precisely controlled.Detailed experiments were performed during photochemical pollution episodes , it showed the apparition of ozone-initiated reactions products indoors.

The investigation of the performance of a floor-supply displacement ventilation system with swirl diffusers or perforated panels under a high cooling load situation (90W/m2). Was the objective of this research.Measurements and numerical simulations using a CFD program were carried out to evaluate the performance of the system for a large workshop.That study ranks the impacts of several parameters, such as the air change rate, number of diffusers, and arrangement of exhaust, on the indoor environment

The hybrid ventilation for the independent building has many advantages that are presented in this paper, among them : no recycle ventilation system, reduction of the pollution, energy saving without air quality decreasing.And this type of ventilation system can work with radiant heating (or cooling) .

This paper discusses indoor air quality considerations for office spaces when using VAV system. that provide various supply air rate according to the space loads, especially in multiple spaces, served by a common air handling unit. The ventilation rate procedure and the indoor air quality procedure (the monitoring contaminant concentration method) are used in order to ensure the indoor air quality. A design solution and ventilation control strategy at the fixed outdoor air rate for indoor air quality is provided.

In pharmaceutical laboratory, the discharge of a poisonous gas by the draft chamber with high-speed responsive VAV exhaust device is necessary, but it is then difficult to maintain constant the indoor temperature. The room temperature control characteristics are analysed in that paper using CFD simulations coupled with the zone outlet temperature control simulations.

This paper compares different kinds of supply air jet that produce different air distribution in the same room. Indoor thermal comfort conditions are investigated. Measurements and calculations were made . The results were analyzed and compared to provide some valuable conclusions for application in an air-conditioned room with different kinds of supply outlets..

The aim of the project is to study the technical and physical conditions required to ensure satisfactory ventilation in schools with fan assisted natural ventilation . Analyses of the air flows for different combinations of outdoor climates were made. A model was built, the computer calculations with the program PFS and full-scale measurements in school buildings have allowed the study of the performance of the ventilation system in combination with the building. .

A special stategy must be applied to optimize the ventilation rates required in Korean classrooms. The aim of that study was to identify concentration decay by infiltration in a classroom at recess periods and to suggest proper ventilation rate to improve IAQ in the classroom. Classrooms of three schools were evaluated and the results show many interesting aspects of concentration decay patterns affecting door opening at recess period.