医院中的空气微生物既有一般大气中的自然微生物．又有病源菌．且含量远高于普通环境．种类亦多。据统计．目前世界上41种主要传染病中，经空气传播的就有14种．占各种传播的首位。医院感染与空气微生物密切相关．如切口感染大多由于手术室空气中细菌降落所引起[1]。因此进行医 The airborne microorganisms in the hospital have both natural microorganisms in the general atmosphere. Another source of bacteria. And the content is much higher than the normal environment. Many types. According to the statistics. Of the 41 major infectious diseases in the world, 14 are airborne. Accounting for the first of all kinds of communication. Nosocomial infections are closely related to airborne microorganisms. Such as incision infection mostly due to the airborne bacteria in the operating room caused by the landing [1]. So for medical treatment