Discussion on some problems in design of ventilation system for hygiene passing through of infectious disease hospitals

This paper analyses the hygiene passing through process and the problems existing in the ventilation system design standard of hygiene passing through in infectious disease hospitals. And then for the hygiene passing through, isolated control points and strengthen control measures of its entry and exit rooms are put forward, and the ventilation rate calculation method is improved. The airflow review control points，room pressure fluctuations and air distribution control method are given.