Observation on disinfection effect of a chlorine dioxide sustained release disinfection device
Objective To observe the disinfection effect of a chlorine dioxide sustained release disinfection device on indoor air and surfaces.Methods The disinfection effect of a chlorine dioxide sustained release disinfection device on indoor air and surfaces in hospital outpatient department was observed by natural settlement method and cotton swab smear method.Results The chlorine dioxide sustained release disinfection device was placed in the consulting room,and the concentration of chlorine dioxide in the air reached 25 mg/L within 12 h of starting operation.The qualified rate of air disinfection in the examination room was increased from 56.67%to 100.00%after 12 h of sustained chlorine dioxide fumigation with the stand of unmanned hospital Ⅲ environment.The qualified rate of object surface disinfection effect increased from 46.67%before disinfection to 96.67%.The control group was irradiated with ultraviolet lamp for 1 h,then the qualified rate of air disinfection in the examination room was increased from 60.00%to 96.67%,and the qualified rate of surface disinfection was increased from 56.67%to 90.00%.Conclusion The chlorine dioxide sustained release disinfection device has the same disinfection effect on the air and surface of the outpatient consultation room as the ultraviolet lamp irradiation.
NETL
NSTL
万方数据
