Indoor Air Quality Management In the past, environmental concerns were mainly focused on outdoor environment degradation, such as water, air, soil, and waste. However, in recent years, citizen's rising interests toward a "well-being" lifestyle together with research contributions are accelerating the concerns regarding indoor air pollution making indoor air quality management an emerging environmental challenge of the era. Having experienced the energy crisis in the 1970s, efforts were made to save energy while enhancing energy efficiency through improvements in adiabatic and airtight mechanisms. However, these strategies resulted in decreasing amount of air circulation, which meant a degradation of indoor air quality. For example, research showed that residents in newly built houses often experienced Sick House Syndrome, which causes eye irritation, nasal congestion, severe headache, and/or bloating. In particular, considering that most people spend more than 80% of their daytime indoor - such as in offices, indoor markets, schools, and hospitals - measures for efficient indoor air quality management were urgently called for. In this recognition, the Indoor Air Quality Management Act has been in effect since May 2003, with MOE giving one of the top priorities to the effective indoor air quality management and gearing various policy measures to protect citizens against the health risks of air pollution in their daily lives.