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目的探讨普通病房3种空气净化方式的净化效果,指导制定不同状态的病房个体化空气环境净化消毒方案。方法应用自然通风、紫外线灯和负离子空气净化器3种空气净化方式,分别对病房空气净化前后采样,进行环境空气细菌学监测,分析对可疑致病菌或条件致病菌的净化消毒效果及与医院感染的关系。结果 3种净化消毒方式均能达到Ⅱ类环境空气消毒标准(<200 cfu/m3),且差异无统计学意义(P>0.05),但自然通风对室内空气的可疑致病菌或条件致病菌仅有稀释净化作用而无消毒灭菌效果;空气环境中可疑致病菌或条件致病菌与医院感染具有相关性。结论3种空气净化方式均能达到理想效果,可根据病室内具体环境选择不同方式;并密切监测可疑致病菌或条件致病菌,预防医院感染的发生。
Objective To explore the purifying effect of three kinds of air purification methods in general wards, and to guide the formulation of personalized air environment purification and disinfection programs in different states. Methods Three types of air purification methods, including natural ventilation, UV lamp and negative ion air purifier, were used to monitor the ambient air bacteriology before and after the air purification and analyze the effects of disinfection and disinfection on suspicious pathogens or pathogens The relationship between hospital infection. Results All three kinds of disinfection and disinfection methods could reach Class Ⅱ ambient air disinfection standard (<200 cfu / m3), and the difference was not statistically significant (P> 0.05). However, natural ventilation could cause suspicious pathogens or conditions in indoor air The bacteria only dilution purification without disinfection and sterilization effect; airborne environment suspicious pathogens or opportunistic pathogens and hospital infection are related. Conclusion All the three air purification methods can achieve the desired results. Different methods can be selected according to the specific environment in the ward. The suspicious pathogenic bacteria or opportunistic pathogens can be closely monitored to prevent the occurrence of nosocomial infections.