Research on the Building Indoor Air Quality’s Functional Classification and Its Changing Prediction

Through inspect analysis on the building indoor air quality (IAQ), this paper aims to find that the different functional room, the different its main pollutants. At the same time, the concentration of the main pollutants will fluctuate according to the temperature, relative humidity, air velocity. In order to research the long period change rules, the first-order decay models are derived. And this will provide new method to research the IAQ.