The health of indoor environment is very important.

With the development of economy and the improvement of people's living standards, when improving living conditions, people are more accustomed to considering the location, environment and traffic convenience of the house, and then the area, practical convenience and aesthetics of the house. In 1970s, the global energy crisis broke out. In some developed countries, in order to save energy in architectural design, indoor ventilation is insufficient and indoor pollution is aggravated, resulting in "Legionnaires' disease" and "sick building syndrome". The sudden outbreak of acute infectious atypical pneumonia is mainly due to indoor transmission; The appearance of H 1NI swine flu and superbugs all show the importance of indoor environmental sanitation! In addition to hospital transmission, some patients or virus carriers spread it to their families at home. Therefore, the new concept of "healthy home" highlights its significance, that is, home should put health first.