三种空气消毒法效能及有效时段的观察

Observation of efficacy and effectual time in three kinds of air disinfection method

目的 :观察室内空气经三种方法消毒后消毒效能及有效时段 ,为医院及公共场所选择更为有效的室内空气消毒剂提供资料。方法 :将三个实验室随机分为三组 ,每组用一种消毒方法消毒后 ,在不同时段同时对各组室内空气采用自然沉降法采样。结果 :三种消毒方法对室内空气细菌都有显著杀灭作用 ,但各消毒方法之间消毒效果维持的时间差异有极显著性。结论 :二氧化氯消毒剂喷雾消毒效果最好 ,消毒效果维持的时间最长 ,其次是过氧乙酸喷雾 。

Objective:To observe the disinfection efficacy and effectual time of indoor air in three kinds of air disinfection method,in order to provide the first-hand data of choosing effective indoor air disinfectant for hospitals and public places.Methods:Three laboratories were divided into three groups randomly,the indoor air in every group was respectively sampled by the method of natural sedimentation at different moments after using one kind of disinfection method.Results:There was obvious disinfectant effect for indoor air germ in three kinds of air disinfection method,however the difference in the disinfectant effect and persistent time was still significant among three disinfection methods.Conclusion:The spraying sterile effect of chlorine dioxide(CIO 2 )disinfectant is the best,its persistent time of disinfection effect is the longest.The next one is spraying disinfection of peracetic acid,the irradiation of ultraviolet ray occupies the third place in turm.