Property management (PM) is the management of building activities and usage, which aims to provide a clean, healthy, safe, and comfortable environment to the users. TSMC's PUSD (Public Utilities Service Department) operates from a property management perspective and practical property maintenance experiences to enhance TSMC employees' understanding of the importance of a healthy office. PUSD utilizes innovative strategies to design a sustainable indoor air quality maintenance system, decreasing energy consumption and increasing ventilation efficiency. PUSD provides the implementation of indoor vertical gardens purifies air quality and reduces CO2 emissions. In addition, PUSD also provides a proper cleaning process to reduce the risk of environmental pollution. The collective process effectively ensures clean air and provides a healthy working environment for TSMC's employees.