For example, surfaces of door handles, handle bars, or toilet flushes that are not directly in the line-of-sight will not be disinfected.Ģ. High-touch points that are obscured may be missed. There must be line of sight from the UVC source to the surface to be disinfected for treatment to be effective. However, the following factors must be considered when it is applied, whether as a fixed installation or as a portable system:ġ. UV disinfection has a short turn-around time (less than 30 min) and does not leave any chemical residues behind after treatment. The efficacy of UVGI against a range of microbes has been demonstrated in numerous studies. UVC sterilisers which use UVGI have been applied in the healthcare sector and in research. This method of disinfection has been applied in the disinfection of surfaces and sanitisation of drinking water. Ultraviolet Germicidal Irradiation (UVGI) is a disinfection method that uses UVC. Ultraviolet-C (UVC) radiation has wavelengths of 100nm - 280nm and is in the spectrum of the sun’s radiation that we are rarely exposed to, as the ozone layer in the stratosphere prevents UVC rays from reaching the surface of the earth. Notice Advisory On The Use of UVC Sterilisers In The HomeĪdvisory On The Use of UVC Sterilisers In The Home
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