纳米光催化空气消毒机对高压氧舱内空气消毒效果观察

Effect of Nanometer Light Catalysis Decontamination Machine on Air Disinfection in Hyperbaric Oxygen Chamber

目的探讨医院高压氧舱应用纳米光催化空气消毒机进行舱内空气消毒的效果。方法分别于高压氧治疗结束患者出舱后30min，采用纳米光催化空气消毒机进行空气消毒前、消毒后1、2、3h监测舱内空气细菌数量。结果采用纳米光催化空气消毒机消毒后舱内空气病原菌数，由消毒前的764～1989CFU／m^3下降到31～268CFU／m^3，自然菌平均消亡率〉80％。结论应用纳米光催化空气消毒机进行高压氧舱内空气消毒，是一种安全有效的方法。

OBJECTIVE To analyze the effect of nanometer light catalysis decontamination machine on air disinfection in the hyperbaric oxygen（HBO） chamber in the hospital. METHODS The nanometer light catalysis decontamination machine was used to disinfect the HBO chamber air at the time of thirty minutes after patients leaving the chamber when the HBO therapy was finished, then the amount of bacteria in the air was monitored before and 1, 2 and 3 hours after disinfection, respectively. RESULTS After disinfection using nanometer light catalysis decontamination machine, the amount of bacteria in the chamber air decreased from 764--1989 CFU/m^3 before disinfection to 31 -- 268 CFU/m^3. The mean ratio of natural bacteria dissolution was more than 80 %. CONCLUSIONS Using nanometer light catalysis decontamination machine is a safe and effective method for air disinfection in the HBO chamber.