Comparative Analysis of Indoor Air Quality in Office Cabins Based on Carbon Dioxide Concentration

Abstract

The importance of indoor air quality is increasingly being recognized in sustainable office design, as elevated indoor Carbon Dioxide (CO₂) concentrations may indicate inadequate ventilation and affect the comfort and productivity of occupants. Indoor green plants are often considered a potential approach to improving the indoor environment; however, their actual contribution to reducing indoor CO₂ concentrations in office spaces requires further investigation. In Bangladesh, limited research has examined the relationship between indoor green plants and CO₂ concentration in office environments. This study aims to conduct a comparative analysis of indoor CO₂ concentrations in two selected office cabins in Dhaka, Bangladesh: one at Ahsanullah University of Science and Technology (AUST), where indoor green plants are present, and another at Four Angle Interiors, where indoor green plants are absent. The primary objective is to investigate variations in CO₂ concentration between the two office cabins and assess whether their measured levels fall within the recommended indoor CO₂ range. A quantitative research approach was adopted, with primary data collected through direct measurements using an air quality detector. The collected data were analyzed to compare CO₂ concentrations between the selected cabins and explore the potential influence of indoor green plants on indoor air quality. The findings of this study are expected to provide insights into the relationship between indoor greenery and CO₂ concentration in office environments. By comparing the measured CO₂ levels in cabins with and without indoor plants, this research seeks to contribute to the understanding of indoor environmental quality and the potential role of indoor greenery in sustainable office design. The study may provide useful information for architects, interior designers, and facility managers in developing healthier and more comfortable office environments in Bangladesh.