一种床单位臭氧消毒器杀菌效果的观察

OBSERVATION ON DISINFECTION EFFECT OF A TYPE OF BED UNIT OZONE DISINFECTOR

目的观察一种床单位臭氧消毒器杀菌效果及其实际应用消毒效果。方法采用载体定量杀菌试验和现场消毒试验方法,对该床单位臭氧消毒器消毒效果进行了实验室观察。结果该床单位臭氧消毒器启动运行10min,在消毒容器内臭氧浓度为2 494 mg/m3。将染菌载体布放到床单位消毒器内床单位上、中、下层,经臭氧熏蒸消毒30 min,对载体上污染的金黄色葡萄球菌、大肠杆菌、铜绿假单胞菌和白色念珠菌平均杀灭对数值均>3.00。在相同条件下,将一组床单位置于臭氧消毒器内消毒作用30 min,对被褥表面自然菌的杀灭对数值均>1.00。结论该床单位臭氧消毒器利用臭氧熏蒸消毒对多种细菌繁殖体和真菌都具有较好的杀灭作用,对床单位实际消毒效果能达到规范的要求。

Objective To observe the disinfection effect and practical application of a type of bed unit ozone disinfector. Methods The carrier quantitative germicidal test and field disinfection trail were used to carry out laboratory study on disinfection effect of the bed unit ozone disinfector. Results After the bed unit disinfector operating for 10 minutes, the concentration of ozone was 2 494 mg/m3 in the disinfector. The average disinfection logarithm values of Staphylococcus aureus, Escheriehia coli, Pseudomonas aeruginosa and Candida albicans on carriers put on the different parts （upper layer, middle layer and lower layer） of the bed unit in the disinfector and fumigated in ozone for 30 min were 〉 3.00. That of nature bacteria on bed surface which was put in the disinfector and incubated for 30 min was 〉 1.00. Conclusion The bed unit ozone infector has good germicidal effect on vegetative form of bacteria and fungi and the actural disinfection effect can achieve canonical requisition of practical disinfect effect on bed unit.