Indoor Air Quality Assessment Based on Grey Classification Method

Indoor air quality is one of the main factors, which affect indoor environment. Through analyzing indoor air quality (IAQ), 9 main factors have been established in this paper, such as temperature, wind speed and relative humidity, and so on. By the adaptive degree of human's physiology and psychology to indoor environment, IAQ is partitioned into 3 grades that are comfortable, rather comfortable and uncomfortable. According to the above 3 grades, the limitation scopes of every grade of all factors are given, accordingly. With the favorable assessment functions, the grey classification theory has been utilized to establish the assessment model of indoor air quality in this paper. It will provide the basic theory for reflecting and analyzing the indoor air quality more impersonal, exact and scientific. The analyzing result can provide references and standards for improving indoor environment, too.