Sumarni Ismail

A structural regression model for relationship between indoor air quality with dissatisfaction of occupants in education environment

This paper analysis the effects of indoor air elements on the dissatisfaction of occupants in education of environments. Tries to find the equation model for increasing the comprehension about these affects and optimizes satisfaction of occupants about indoor environment. Subsequently, increase performance of students, lecturers and staffs. As the method, a satisfaction questionnaire (SQ) and measuring environment elements (MEE) was conducted, 143 respondents at five classrooms, four staff rooms and five lectures rooms were considered. Temperature, air velocity and humidity (TVH) were used as independent variables and dissatisfaction as dependent variable. The hypothesis was tested for significant relationship between variables, and analysis was applied. Results found that indoor air quality presents direct effects on dissatisfaction of occupants and indirect effects on performance and the highest effects fallowed by temperature. These results may help to optimize the quality of efficiency and effectiveness in education environments.

An Investigation Into Indoor Air Quality and Sick Building Syndrome

This study focuses on indoor air quality and its influence to the healthy of the occupiers and in this case study identified the dissatisfaction level among the respondents in the education environments. Air velocity, temperature, and relation humidity were investigated using a device and then the analysis is correlate with the satisfaction level of the respondents. Using the analysis of regression, the impact of these three items on the dissatisfaction of students, staff, and lecturer were estimated. It is known that temperature and wind speed have the greatest impact on dissatisfaction level. The study also identified the sick building syndrome among the raspondents namely among students, staffs, and lecturers which found that medium risk of sick building syndrome were found between the respondents. The study identified that the sick buildings symptoms tended to disappear after the participants leave their office, classroom and the buildings.