UV disinfection

Optical Modeling of UV Sterilization Systems

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Current worldwide conditions have brought a renewed focus on ultraviolet or UV based sterilization systems. UV light has been shown to kill many types of pathogens. A key metric is the dose, or amount of UV light on a surface, as a minimum dosage level is required for effective sterilization. Using optical analysis software as part of the design process ensures that these minimum dosage levels are obtained.

The authors suggest that placing UVC light sources at ventilation systems and rooms not in use, without direct optical paths to humans, helps reduce virus propagation. Credit: Nacho Gaubert

Researchers advocate for use of UV light in Covid-19 disinfection

A study involved experts in the fields of virology, immunology, aerosols, architecture, and physics, analyse possible methods to prevent Sars-Cov-2 propagation indoors

Prototype of the UVC LED irradiation system with 118 LEDs. The inset shows a detail of the LED array (©FBH/P. Immerz)

UV sterilisation device being tested for use on human skin

An LED irradiation system has been developed at the Ferdinand-Braun-Institut in Berlin that aims to kill microorganisms with ultra-short wave UV light. The researchers anticipate that the UV light emitted from their device will not be harmful to human skin

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