Abstract: Objective To analyze the national situation,standard limit value and health influence of inhalable particle matter （PM₁₀） in centralized air conditioning and ventilation system in public places in China,provide reference for the establishment of PM₁₀ index of air conditioning ventilation system. Methods The literature on the sanitary status or standards or health effects of centralized air conditioning in public places in China from January 1,2001 to April 31,2022 was collected and analyzed by literature analysis. Results A total of 38 articles of centralized air conditioning and ventilation systemin public places,five current standards and 13 articles of epidemiological investigation on health effects were retrieved. In the literature,42.1% of the central air conditioning and ventilation system had 100% of qualified rate in supply air PM₁₀,and 42.1% of the central air conditioning and ventilation system had 90%-<100% of qualified rate in supply air PM₁₀. The standard PM₁₀ limit issued by the Ministry of Health was 150 μg/m³,and the local standard in Jiangsu Province and Shanghai was 120 μg/m³. There was the most literature on the relationship between centralized air conditioning and ventilation system in public places and human respiratory symptoms. Conclusion The level of PM₁₀ in supply air of centralized air conditioning and ventilation system in public places in China is decreasing steadily,the limit standard of supply air PM₁₀ of air conditioning should be more strict,at the same time,the systematic research on the impact of air conditioning supply air PM₁₀ on human health should be strengthened.

Key words: Centralized air conditioning, Air supply, PM₁₀