Ultraviolet sterilization using UV-C LED is the principle that when ultraviolet rays of UV-C wavelength are sufficiently irradiated to germs such as viruses or bacteria, DNA in cells is destroyed and no longer grows and dies. In addition to the above, most of the sterilizers use UV-C LEDs because of the short life of the mercury lamp. In addition to the Republic of Korea, mercury lamps and all mercury-based products have been prohibited from mining, importing, exporting, and manufacturing under the “Minamata Convention” from 2020. Ultraviolet sterilization is usually used in the form of a mercury lamp or LED that irradiates UV-C in the wavelength range of 250 to 280 nm (nanometer), which has a sterilizing effect. Typical UV sterilizers that irradiate UV rays on the surface of a fixed object continuously for 10 to 60 minutes make sense, But can moving objects other than a fixed cup or toothbrush be sterilized with UV rays in a moment?
However, recently, even products that claim to be able to sterilize the surface of moving objects that are not stationary with ultraviolet rays are on sale.Įven the escalator handrail, which is an open public facility that we frequently use, and even keeps moving, is said to be sterilized with ultraviolet light. These products kill germs by irradiating ultraviolet rays in an enclosed space while holding objects to be disinfected such as toothbrushes and cups. In fact, UV sterilizers existed around us like the tableware (cup) sterilizers and toothbrush sterilizers found in food courts and at home. To prevent the spread of the coronavirus, governments and health organizations are recommending and implementing surface disinfection of public facilities, along with personal masks, frequent hand washing, and cough etiquette.ĭuring this period, UV sterilizers, which are said to have a disinfecting function, are being released and sold.
Since the outbreak of coronavirus infection (COVID-19), which threatens the health and safety of many, governments, individuals and markets around the world are all focusing more on the keywords “sterilization”, “disinfection” and “prevention”.
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