不同空气消毒方法对采血室消毒的效果

目的比较不同空气消毒方法对采血室内空气消毒的效果。方法分别采用紫外线灯、三氧消毒机及空气净化消毒器对机采血小板献血环境进行空气消毒，并采用自然沉降法于消毒前、消毒后及工作人员工作时采样，检测消毒效果。结果3种方法消毒后与消毒前比较，均能明显降低采血室内空气菌落数，消毒后室内空气菌落数均符合Ⅲ类环境标准要求。三氧消毒机组和紫外线灯组在工作人员工作状态下，空气菌落数迅速升高，至4 h时，分别达（7.53±1.28）CFU/5 min·Φ90皿、（8.16±1.57）CFU/5 min·Φ90皿；而空气净化消毒器在人员流动的采血环境消毒4 h，空气中菌落数始终＜4.0 CFU/5 min·Φ90皿。结论使用空气净化消毒器对采血室内空气持续消毒，可持续维持工作状态下采血室内的空气洁净度。

Effectiveness of different air disinfection methods for blood collection room

Objective To compare disinfection efficacy of three different air disinfection methods on the air in blood collection room.Methods Air disinfection in blood collection room was conducted by ultraviolet（UV）light,ozone disinfector（OD）and air purification disinfector respectively,natural sedimentation method was used to take air specimens before,after disinfection,and during working condition of staff,air disinfection efficacy was detected.Results All three methods could decrease air bacterial count after disinfection,the total number of bacteria in indoor air after disinfection met the classⅢ environmental requirement.Under working condition of staff,the number of bacteria of OD and UV light group increased rapidly,at 4 hours was（7.53±1.28）CFU/5 min·Φ90petri dish and（8.16±1.57）CFU/5 min·Φ90petri dish respectively;air purification disinfector disinfected for 4 hours under the condition of movement of personnel in blood collection environment,bacteria count still remained 〈4.0CFU/5 min·Φ90petri dish.Conclusion Disinfecting continuously by air purification disinfector can ensure the effectiveness of air cleanliness in blood collection room.