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目的观察动态空气消毒机不同消毒时间、消毒面积、消毒机数量对病室空气的消毒效果。方法选取不同面积的病室,使用1台或2台动态空气消毒机消毒不同时间后进行空气采样,比较不同消毒条件下病室内空气中自然菌落数。结果面积≤30m~2的病室,使用1台消毒机消毒60min时菌落数显著少于消毒30min、120min(均P<0.01);使用1台消毒机消毒60min后,面积28.5m~2的病室菌落数显著少于面积41.9m~2病室(P<0.01);使用2台空气消毒机消毒60min后,面积41.9m~2病室菌落数显著少于面积28.5m~2病室(P<0.01);病室空气消毒6h后,室内空气中菌落数≥500cfu/m~3。结论使用动态空气消毒机消毒,应根据病室空间需求,合理配置消毒机数量,设置消毒时间。
Objective To observe the disinfection time of dynamic air disinfection machine, disinfection area, the number of sterilizers disinfection of the ward air. Methods Ward with different area was selected, air sampling was performed after disinfecting for different time with one or two dynamic air sterilizers, and the number of natural colonies in the air was compared under different disinfection conditions. Results The number of colonies in the area ≤30m ~ 2 was significantly less than that in the disinfection for 60min (P <0.01) after disinfecting for 60min with one disinfection machine. The number of colonies was 28.5m ~ 2 (P <0.01). After disinfecting with 2 air sterilizers for 60min, the number of colonies with an area of 41.9m ~ 2 was significantly less than that with an area of 28.5m ~ 2 (P <0.01) Air disinfection 6h, indoor air colonies ≥ 500cfu / m ~ 3. Conclusions The use of dynamic air disinfection disinfection should be based on space requirements of the ward, a reasonable allocation of disinfection machine number, set disinfection time.