States that hospital facilities are required to have a variety of special functions and hospitals must also have a carefully controlled and comfortable environment. It is necessary to balance all these requirements and to ensure the most suitable controlled administration. Presents a study of a hospital and medical school which seeks to clarify qualitative tendencies and characteristics about the reliability and maintainability of hospital facilities. Employs the Weibull analysis for quantitative consideration.

KEYWORDS: Hospitals, maintenance, reliability, Japan, air conditioning