负压病房是指病房内的气压低于病房外的气压的病房。这也是WHO在规定抢救非典病人时特别强调的一个重要条件，国内的很多家医院都难以达到这个水平。
给出了负压病房和相邻洁净区域压差的推荐值。
Recommends the proper value of pressure difference between negative pressure wards and adjacent clean zones.
结果，负压病房工作区空气含菌量从清洁区-半污染区-污染区（负压病房）依次升高；
Results: The air bacterial count of the working areas of negative-pressure ward increased in the order of clean area-semicontaminated area-contaminated area (negative-pressure ward).
同时，对传染性隔离病房等负压洁净室应采用静态控制手段与全过程动态控制手段相结合的理念进行了研究和探讨。
And then, a new concept which combined static state controlling measures with dynamic state controlling measures in the whole process has also been done.
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