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Ansarimanesh M, Nasrollahi N. Proper Range of Carbon Dioxide to Optimize Indoor Environmental Quality in Office Buildings of Kermanshah. Naqshejahan 2018; 8 (1) :9-15
URL: http://bsnt.modares.ac.ir/article-2-26883-en.html

Aims: In office buildings, high quality of indoor environment increases staffs’ efficacy and makes the economy flourished, while lack of it causes staffs’ dissatisfaction and reduces their efficacy. Many factors contribute to the creation of a qualified indoor environment, one of which is proper ventilation. One of the important factors in determining the ventilation rate is the amount of carbon dioxide in the space. Hence, the aim of this study was to determine the proper range of carbon dioxide to optimize indoor environmental quality in office buildings of Kermanshah.
Materials and Methods: The present study was conducted from February15 to March 15, 2011, using field methods, measuring the carbon dioxide level, and leading the inventory in applied and quantitative research employees of 10 office buildings in Kermanshah to examine the proper range of carbon dioxide in office buildings of Kermanshah. To compile the questionnaire, a questionnaire in the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) was used, but according to the type of research and coverage of the questions, some changes were made by adding some related questions. The data were analyzed by SPSS 16 software.
Findings: In all buildings, 71.6% of people were satisfied with air quality and ventilation. In most buildings, carbon dioxide was in the standard range except for the building 8. The air quality satisfaction in this building was 59%.Building 3 had the best condition.
Conclusion: The proper range of carbon dioxide in the office buildings of Kermanshah is less values than 1200ppm.