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Disinfection effect of pulsed xenon ultraviolet irradiation on SARS-CoV-2 and implications for environmental risk of COVID-19 transmission

See Prolonged survival of SARS-CoV-2 on environmental surfaces and personal protective equipment (PPE) may lead to these surfaces transmitting disease to others. This article reports the effectiveness of a pulsed xenon ultraviolet (PX-UV) disinfection system in reducing the load of SARS-CoV-2 on hard surfaces and N95 respirators. Chamber slides and N95 respirator material were directly inoculated with SARS-CoV-2 and exposed to different durations of PX-UV disinfection. For hard surfaces, disinfection for 1, 2, and 5 minutes resulted in 3.53 Log10, >4.54 Log10, and >4.12 Log10 reductions in viral load,respectively. For N95 respirators, disinfection for 5 minutes resulted in…
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