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UV-C light can be used to kill micro-organisms in a variety of environments, such as:
UV disinfection is highly effective for destroying harmful bacteria such as pathogens, viruses and molds.
UV-C disinfection provides fast, on-demand broad area disinfection of high-touch surfaces.
With UV-C technology it is possible to destroy more than 99.99% of all pathogens – over specific time frames – without chemicals, without harmful side effects, inexpensively, efficiently and reliably.
When pathogens are exposed to the germicidal wavelengths of UV light – they are destroyed.
Micro-organisms breed on surfaces, creating a potential hazard for products and people.
In the case of food surfaces (and many other surfaces), conventional disinfectants and heat treatment techniques are simply not practical.
Repeated applications may be required – only for use by trained professional users Hour meter – for accurate lamp replacement schedule – this item is an optional add on Flexible measuring sticks – to keep unit 100mm from surface
UV Light as a Disinfectant
Successful ultraviolet disinfection demands strict adherence to Established Engineering Guidelines, and this document is intended to inform – as we believe education installs confidence with the equipment and its use for successful operation.
Ultraviolet sterilization is unmatched in its efficiency, simplicity, and dependability when applied as a microorganism disinfectant including in the healthcare industry where infections caused by multidrugresistant (MDR) pathogens are significantly associated with increased mortality and morbidity.
UV Disinfection is the use of UV-C light to inactivate exposed microorganisms through a photochemical reaction in the organism’s DNA UV-C Germicidal Light deactivates the DNA of bacteria, germs, fungi and viruses. This deactivation destroys the cells ability to reproduce.
Specifically, it causes damage to the nucleic acid of the cell by forming covalent bonds between certain adjacent bases in the DNA. These bonds cause the cell to die when it tries to reproduce.
According to the Environmental Protection Agency, most surfaces we come in contact with daily, contain hundreds of thousands of infectious microorganisms, which can only be seen with a microscope.
These microorganisms can cause diseases such as Influenza, Diarrhoea Ringworm, HIV, Impetigo and Hepatitis to name a few. The proper energy dosage of UV-C light will destroy every type of microorganism known provided enough dosage is applied.
UV-C energy is measured in micro-watt seconds per square centimetre (μW S//cm2). So to answer the question as to what dosage of UV-C Light is required to kill certain types of microorganisms we need to do the following. We need the intensity of UV-C radiation from the source in micro-watt seconds per square centimetre. (if we are using the device at a distance other than that for which the
intensity is given then the intensity must be changed.
Intensity changes by the square of the distance ie; if the intensity is measures at 100mm and you are holding the device at 300mm above the surface then the intensity must be divided by 3×3=9) We need to know the required dosage to inactivate the pathogen to a certain kill rate in micro-watt seconds per square centimetre (μW S/cm2) We now divide the inactivation dosage by the dosage delivered by the device and get an answer in seconds of exposure.