Comparison and analysis of clauses of hospital ventilation and air conditioning system in related regulations of China and USA on main technical indexes

Performs detailed comparison and analysis of the main index of fresh air volume, filter class, pressure difference, noise, temperature and humidity regulated in the  ANSI/ASHRAE/ASHE Standard 170—2008, Guidelines for design and construction of health care facilities and China’s national standard—the Architectural technical code for hospital clean operating department, etc. Argues that great importance should be attached to the effectiveness of the initial investment and operation costs, and to the energy efficiency in engineering, which suggests imperative revision of some items in the current code.