It is well known that heating, ventilation, and air conditioning (HVAC) systems are a double-edged sword for human living environment. While it helps improve the temperature and humidity of the living environment, HVAC systems also become one of primary pollution sources causing the deterioration of indoor air quality. Numerous approaches [1] have been adopted to improve indoor environment quality, such as personalized ventilation (PV) [2], displacement ventilation [3] and stratum ventilation (SV) [4].