Sterilize effect of laminar flow complex in operating room

Objective: To explore the sterilize effect of laminar flow complex in operating room. Method: plate exposure method were used to measure the volume of nature dissipated bacterium in sterilized laminar flow operating room. Three groups( simple laminar flow, laminar flow plus ultraviolet, laminar flow plus Xinyongtai spray) were assigned, each group were performed with the same manner. Result: there was no obvious deference between simple laminar flow group and laminar flow plus ultraviolet group, while the deference between simple laminar flow group laminar flow plus ultraviolet group and the complex combining laminar flow and air had significant deference p0.01. Conclusion: the standard with the volume of nature dissipated bacterium in air10cfu/m3 cannot be reached only by decontamination, the same as plus ultraviolet irradiation, which can only be reached by combining chemical disinfect spray.