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[ { "title": "READ | UV-C Lighting In Focus", "nid": "470", "body": "\u003Cp class=\u0022text-align-justify\u0022\u003EThe COVID-19 pandemic has created a renewed focus on ensuring that workplaces, facilities and public spaces are safe to use. Interest has since turned to ultraviolet lighting as a tried and tested means of disinfecting air, water and surfaces.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EIn this article, we give an overview of what UV lighting actually is, how it works and where it can be applied.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003E\u003Cu\u003EThe science of it all\u003C/u\u003E\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EUV light is that part of the electromagnetic spectrum that spans 100-400 nanometers (nm). Basically, it is divided into three different types, A, B and C.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EUV-A and UV-B is found in sunlight. It\u2019s what gives you a suntan or sunburn. UV-B is well known for medical applications, such as the treatment of psoriasis, and is also responsible for the formation of bone-strengthening vitamin D.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EThen there\u2019s UV-C, which is an invisible light, spanning the range of 100-280 nm, and has powerful germicidal properties. UV-C from the sunlight is filtered out by the Earth\u2019s atmosphere. We should be thankful for this as exposure to certain wavelengths of UV-C radiation is hazardous to the skin and eyes of humans and animals. Despite this, UV-C lighting, when designed properly, installed correctly with safety instructions followed, is a safe and highly effective form of disinfection. \u00A0\u003C/p\u003E\n\u003Cp\u003E\u003Ca href=\u0022mailto:hello@magnetgroup.co.za?subject=UVC Enquiry\u0022\u003E\u003Cimg alt=\u0022UVC\u0022 data-entity-type=\u0022file\u0022 data-entity-uuid=\u0022c8c6b946-eb61-416e-9ad8-b3b78ea1ceb4\u0022 src=\u0022/cms/drupal8-magnetgroup/sites/default/files/inline-images/Infographic%20-%20uv%20light.jpg\u0022 class=\u0022align-center\u0022 /\u003E\u003C/a\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003E\u003Cu\u003EProven track record\u003C/u\u003E\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EFor years, UV-C has been used to disinfect drinking water, wastewater, air, pharmaceutical products, and surfaces against a whole suite of pathogens. In fact, it has rendered inactive all bacteria and viruses tested to date (many hundreds over the years, including coronaviruses).\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003E\u003Cu\u003ELet\u2019s review the various forms of disinfection\u003C/u\u003E\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003E1. Surface Disinfection\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EDisinfection of surfaces is performed through direct exposure to the UV-C radiation from lamps, luminaires or disinfection carts that are activated when people are not present. They can be brought into a workplace when people have left. An extra level of safety may be provided by remote on-off switches and sensors which can shutdown systems if people or animals are detected.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003ETypical surface disinfection lamps are 55W and depending on the dose, disinfection can be done in seconds or a matter of minutes.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EOf course, the light won\u2019t be able to reach areas in shadow. So, for areas requiring deep disinfection it is recommended that UV-C forms part of a multi-barrier approach, alongside traditional scrubbing and cleaning with chemical disinfectants. Where UV-C scores highly is that it saves on time, requires few to no people and no chemicals. Surface disinfection lends itself to high contact areas such as offices, schools, restrooms and gyms.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003E2. Air Disinfection\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EContaminated air, at an upper level, passes through a \u2018UV-zone\u2019 where it\u2019s disinfected. Such systems can be used in rooms with people present as the light source is shielded from those below and located at a height of at least 2.3m.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003ESome air conditioning systems also us UV-C where high output lamps will keep the cooling coil free from microorganisms that can otherwise stick together to create a biofilm. In addition, UV-C lamps may be applied inside air conditioning ducts to inactivate bacteria. Due to the high air speed, the required UV-C dose inside ducts will be relatively high.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003E3. Water Disinfection\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EApplications include disinfecting and purifying drinking water, wastewater, process water, swimming pools, and ponds. UV-C lamps are available in numerous wattages depending on the application, which varies from large municipal installations in which several hundred lamps are used, to small units that fit inside household sinks to disinfect drinking water.\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003E\u003Cstrong\u003E\u003Cu\u003EA technology whose time has come\u003C/u\u003E\u003C/strong\u003E\u003C/p\u003E\n\u003Cp class=\u0022text-align-justify\u0022\u003EThe COVID-19 pandemic has put UV-C lighting firmly into the spotlight. Today, companies and institutions are waking up to a new normal where germ and virus-free spaces are no longer \u2018nice to haves\u2019. UV-C lighting, which has been around for more than 40 years, is a well-tested, yet relatively unsung technology. It has taken a terrible pandemic for it to emerge out of the shadows. A technology whose time has surely come.\u003C/p\u003E\n\u003Cp\u003EAre you considering UV-C technology in your facility or office? \u003Cstrong\u003E\u003Ca href=\u0022mailto:hello@magnetgroup.co.za?subject=UVC Enquiry\u0022\u003ECHAT\u003C/a\u003E \u003C/strong\u003Eto us for advice on the options most suited to your specific application!\u003C/p\u003E\n\u003Cp\u003E\u003Ca href=\u0022https://www.magnetgroup.co.za/download/uv-c-equipment-brochure.pdf\u0022\u003E\u003Cstrong\u003EDOWNLOAD\u003C/strong\u003E\u003C/a\u003E our UV-C Lighting Brochure.\u003C/p\u003E\n\u003Cp\u003E\u003Ca href=\u0022https://www.youtube.com/watch?v=S0oRxqtDGSI\u0026amp;list=PL0AHvVniUcgxqS6TEWQMlnXHb7PVchb6i\u0026amp;index=5\u0022\u003E\u003Cstrong\u003EWATCH\u003C/strong\u003E\u003C/a\u003E our UV-C Lighting Video.\u003C/p\u003E\n\u003Cp\u003E\u003Cem\u003E\u003Cstrong\u003ESource:\u00A0https://www.signify.com/global/our-company/blog/innovation/uv-c-lighting-explained\u003C/strong\u003E\u003C/em\u003E\u003C/p\u003E\n\u003Cp\u003E\u00A0\u003C/p\u003E\n", "created": "Feb 2021", "terms": "Lighting, Education, Products" } ]