等离子体面放电空气消毒机空气消毒效果及安全性评估
Air disinfection effect and safety of plasma surface discharge air disinfector
张亚迪 1宋振耀 1曹晋桂 1马文杰 1苏玉娟 1张虎1
作者信息
- 1. 空军军医大学空军特色医学中心疾病预防控制科,北京 100142
- 折叠
摘要
目的 探讨等离子体面放电空气消毒机医院消毒及安全性效果.方法 每日医疗活动结束后,采用两种不同工作原理的采样器采集自然菌进行现场试验以及使用六级筛孔空气撞击式采样器进行模拟现场消毒试验,对等离子体面放电空气消毒机进行空气中指示菌和自然菌的杀灭效果观察;使用臭氧分析仪对消毒过程中产生的臭氧进行检测.结果 消毒60 min后等离子体面放电空气消毒机对白色葡萄球菌的杀灭率＞99.9％;连续消毒2 h后对空气中自然菌的消亡率＞90％,两种采样器所得的消亡率无统计学差异,但采集的微生物种类存在不同;运行过程中臭氧泄漏量＜0.1mg/m3.结论 离子体面放电空气消毒机可有效降低门诊内空气中的菌落总数,具有良好的消毒效果,能有效阻断病原微生物的传播,从而降低交叉感染的发生率.
Abstract
OBJECTIVE To investigate the disinfection and safety effects of plasma surface discharge air disinfection machines in hospitals.METHOD After the end of each day's medical activities,two samplers with different oper-ating principles were used to collect natural bacteria for on-site disinfection tests as well as simulated on-site disin-fection tests using a six-stage sieve air impingement sampler,the killing effect of the plasma surface discharge air disinfector on indicator bacteria and natural bacteria were observed.An ozone analyzer was used to detect ozone leakage during operation.RESULTS After 60 minutes of disinfection,the killing rate of plasma surface discharge air disinfector for Staphylococcus aureus was＞99％.Following continuous disinfection for 2 hours,the extinction rate of airborne natural bacteria was＞90％,and there was no statistically significant difference in the extinction rate obtained by the two types of samplers,but there were differences in the types of microorganisms collected.The amount of ozone leakage in the process of operation was less than 0.1 mg/m3.CONCLUSION The plasma sur-face discharge air disinfector can effectively reduce the total number of bacteria in the air of outpatient clinics,with good disinfection effect,and can effectively block the transmission of pathogenic microorganisms,thereby reduc-ing the incidence of cross-infection.
关键词
等离子体面放电空气消毒机/空气消毒/内科门诊/臭氧泄漏量Key words
Plasma surface discharge air disinfector/Air disinfection/Internal medicine clinic/Ozone leakage引用本文复制引用
基金项目
空军特色医学中心科研助推计划基金资助项目(2022ZTYB30)
出版年
2024
NETL
NSTL
万方数据