To research sanitary condition of the centralized air ventilation system in public place; provide the basis for sanitary control.
调查分析公共场所集中空调通风系统卫生状况，为卫生管理提供依据。
Objective To investigate the sanitation status of guest rooms of Guangzhou city star hotels and improve the air quality and sanitary condition of public facilities.
目的了解广州市星级宾馆客房的卫生状况，提高客房内空气及公共用品用具的卫生质量。
Objective To investigate the sanitation status of guest rooms of Guangzhou city star hotels and improve the air quality and sanitary condition of public facilities.
目的了解广州市星级宾馆客房的卫生状况，提高客房内空气及公共用品用具的卫生质量。
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