Investigation of Indoor Air Quality in the Selected Ukraine Classroom - Case Study

When reconstructing existing school buildings and building new buildings, great emphasis is placed on increasing their thermal resistance and reducing air tightness. The consequence of these modifications is the reduction of heat flow through the building structure, as well as minimization of uncontrolled ventilation by infiltration through building leaks. According to various studies conducted in the world, it can be said that the exchange of used air for fresh air has a huge impact on the mood of students in the classroom. As part of a research stay at the Lviv Polytechnic, measurements were made in the classroom to determine the air quality during the teaching. The classroom was selected in which measuring instruments were installed for measuring carbon dioxide (CO2) concentration and air temperature. During the measurements didactic classes took place in the classroom. In addition to the measurement of indoor air parameters, a subjective assessment of air quality was carried out using questionnaires. The students filled out the indoor air quality questionnaire at the beginning of their stay in the auditorium at the end of their stay. An assessment of air quality was carried out based on the measured air parameters and questionnaire ratings in the selected classroom.