空气是疾病传播的媒介。医院空气中一定程度的微生物污染是引发医院感染的主要因素之一[1 ] 。为控制这一感染因素,加强了对医院的消毒管理。1995年曾发表过本市1992年～1993年医院空气微生物监测结果报告,其合格率为5 4 3 0 % [2 ] 。近年来,随着气候的变化,医院空气消毒情况 Air is the medium of disease transmission. A certain degree of microbial contamination of the air in the hospital is one of the main factors causing nosocomial infection [1]. In order to control this infectious factor, the hospital’s disinfection management has been strengthened. In 1995, the report of monitoring results of airborne microorganisms from 1992 to 1993 in the city was published, with a pass rate of 54,300% [2]. In recent years, as the climate changes, hospital air disinfection