“…Healthy building was defined at the Healthy Buildings 2000 international conference in Helsinki, Finland in 2000 as "a way of experiencing the indoor environment of a building, which not only includes physical measurement values such as temperature, humidity, ventilation, noise, light, and air quality, but also includes subjective psychological factors such as layout, environmental color, lighting, space, and materials used; in addition to items such as job satisfaction and interpersonal relationships, and a healthy building must contain all of the above" [27,28]. In 2001, the World Health Organization carried out a cross-border "Housing and Health Plan" and categorized the abstract and concrete factors affecting healthy housing into four categories: physical (light environment, thermal environment, air environment, radiation environment, etc.…”