纳米光催化空气消毒器对急诊留观病房空气消毒效果的观察

目的观察纳米光催化空气消毒器对医院室内空气消毒效果。方法在动态情况下,采用平板沉降法采样,对现场实验和实际运行中空气菌落总数进行监测。结果纳米光催化空气消毒器连续消毒1-2 h后,较消毒前空气中自然菌消亡率分别下降55.64%-75.94%,空气细菌含量随时间延长持续降低;4季各区细菌平均菌落数均低于安装前,3区和4区空气中自然菌消亡率分别为73.0%-82.3%和44.5%-76.3%。结论纳米光催化空气消毒器用于医院室内空气消毒,可以在有人条件下持续运行,其借助中央空调强劲的气流循环,能够更加有效地实现其连续空气消毒功能。

Effect of Air Sterilization with Nanometer Photocatalysis Air Sterilizer in Hospital

OBJECTIVE To observe the sterilization effect of nanometer photocatalysis air sterilizer mounted in hospital. METHODS We carried out a dynamic survey on air average numbers of colony through field experiment and practical operation. RESULTS The field experiment displayed that the air bacterium dissolution rate was 55.64-75.94% and the bacterium content degraded as time extended, after nanometer photocatalysis air sterilizer been used 1-2 h;the result of practical operation in four seasons of the year revealed that the average bacterium colony numbers in each ward region was lower than before sterilizer mounted, the air bacterium dissolution rate was 73-82.3% in the third ward region and 44.5-76.3M in the fourth ward region. CONCLUSIONS It is effective to use the nanometer photocatalysis air sterilizer to sterilize the air in hospital under the condition of inspection.