This short paper explores the potential of using carbon dioxide (CO2) data as a means to establish the occupancy status of a room. The rising concern about indoor air quality, energy efficiency, and occupant comfort has led to the development of innovative techniques to monitor and manage the use of spaces. CO2 sensing presents an intriguing opportunity as elevated levels of CO2 are closely linked to human occupancy. By analyzing and interpreting CO2 levels over time, it becomes possible to infer patterns of room usage and optimize various aspects of building management. This paper discusses the methodology, benefits, and challenges of utilizing CO2 data for establishing room occupancy patterns.
