Shedding light on the problem: Influence of the radiator power, source-sample distance, and exposure time on the performance of UV-C lamps in laboratory and real-world conditions.

Shedding light on the problem: Influence of the radiator power, source-sample distance, and exposure time on the performance of UV-C lamps in laboratory and real-world conditions.

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Effective surface disinfection is crucial for preventing the spread of pathogens in hospitals.Standard UltraViolet-C (UV-C) lamps have been widely used for this purpose, but their disinfection efficiency under real-world conditions is not well understood.To fill this gap, the influence of the power of the ultraviolet radiator, source-sample distance, and exposure time on the performance of UV-C lamps against click here Escherichia coli and Staphylococcus epidermidis were experimentally determined in the laboratory and hospital.The obtained results showed that the UV irradiance and, thus, the UV-C disinfection efficiency decreased significantly at distances greater than 100 cm from the UV-C lamp.

Moreover, increasing the total power of the radiators does not improve the performance of UV-C lamps under real conditions.The UV-C disinfection efficiency greater than 90% was achieved only under laboratory conditions at a close distance from iphone 14 price san francisco the UV-C lamp, i.e., 10 cm.

These findings provide novel insights into the limitations of UV-C lamps in real-world conditions and highlight the need for more effective disinfection strategies in hospitals.