Seoyeon Yun completed her PhD Thesis at HOBEL

Given people's significant time spent indoors, ensuring good indoor air quality (IAQ) is essential because it signifi-cantly influences occupants' health and productivity. Office buildings consume about 50% of commercial building energy and 18% of total building stock, with HVAC systems contributing around 40% of the energy consumption. Despite the advent of low-cost smart building sensors, there is a lack of guidelines for optimal IAQ monitoring strategies particularly in offices with dynamically changing occupancy. This thesis investigates three research top-ics: 1) proxy methods for inhalation exposure assessment, 2) optimal air pollution sensor placement which cap-tures inhalation exposures, and 3) sets of indicators for air inhalation exposure and occupancy detection in office environments.