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摘要Background and objectives: Non-thermal atmospheric plasma treatment and pulsed xenon ultraviolet(PX-UV)treatment are widely used in disinfection of hospital environments.However,their effectiveness has not been evaluated against a comparator.The objective of this study is to evaluate their effectiveness in the disinfection of pathogens in the air and on the surfaces of blood sampling sites.Methods: Samples were taken from the air,table surfaces,and the floor before and after disinfection with PX-UV and nonthermal atmospheric plasma.We counted bacterial colonies and identified the types of bacteria.Results: Non-thermal atmospheric plasma treatment does not reduce surface bacterial counts(p=0.18).The median bacteria count before plasma treatment was 1 and increased to 2 after treatment.Plasma treatment also does not significantly reduce bacterial counts in the air(p=0.08),although the median reduced from 1 before treatment to zero afterwards.PX-UV treatment,however,does reduce bacterial counts in the air(p=0.03)and on table surfaces,and on the floor(p=0.001).Pathogens identified in the current study include nosocomial bacteria,such as Staphylococcus aureus,Staphylococcus epidermidis,and yeast.Conclusion: Disinfection of blood sampling sites is essential in a health service department.PX-UV is more effective than non-thermal atmospheric plasma treatment at killing pathogens in the air,on table surfaces,and on the floor.