Sanitary control should be strengthened to the centralized air ventilation system.
公共场所集中空调通风系统应加强卫生管理。
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 realize health status of homemaking service workers in Foshan, and provide reference frame for ruling sanitary control to homemaking service.
目的：了解佛山市家政从业人员卫生状况，为规范家政服务行业的卫生管理提供参考依据。
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