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Safe handling of UVC device – For example, the safety precautions, maximum permissible exposure limits (if the device manual does not contain the information, it should be requested from the manufacturer), location of emergency stop button to power off the device or stop the UVC irradiation.ġ. Health and safety topics – For example, the effects of UVC radiation on the eye and skin, the need for control of the hazards involved and the hazards associated with accidental UVC exposure in work areas.Ĭ. Use of appropriate personal protective equipment (PPE)ī. Personal training should include the following:Ī. The safety guidelines listed below should be followed when using UVC disinfection devices.ġ. UVC devices should only be operated by trained personnel to avoid accidental exposure to the personnel and others at the premises. All UVC devices are to be kept out of reach of children. For those who have respiratory sensitivity such as asthma or allergies, the use of such UVC devices that emit ozone should be avoided and checks should be done with the manufacturer to verify whether the device emits ozone. In addition, some of these UVC devices may also emit ozone, which can irritate the nose, throat and lungs.
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Uvc radiation skin#
In this regard, it is important for members of the public to be aware that these devices should be handled safely as UVC radiation can cause eye injury (for example, irritation and inflammation of cornea) and skin injury (for example, erythema). There has been a growing demand and enquiry for UVC disinfection devices, and an increased availability of such devices in the market. There is therefore a need for careful calibration and monitoring. The effectiveness of UVGI in inactivating microorganisms depends on the duration of exposure, intensity, distance of surface from source and wavelength of the UV radiation.For example, surfaces of door handles, handle bars, or toilet flushes that are not directly in the line-of-sight will not be disinfected. 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:
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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.