The COVID-19 viral disease is now officially a pandemic, the World Health Organization declared at a briefing in Geneva, 11st Mar., 2020. In the past three months, the new coronavirus has swept into over 114 countries, with a total of more than 125,000 infections and more than 4,000 deaths. What’s more, in the past two weeks, the number of cases of COVID-19 outside China has increased 13-fold, and the number of affected countries has tripled. Surfaces, air, and water, ultraviolet-C (UVC) light was designed and developed to kill germs and viruses everywhere.
Daily contact is also one of the ways pathogens are spread, and any place your body touches can be inadvertently infected. In addition to frequent hand washing and a reduction of close contact, sterilization also can’t be ignored for daily commodities and easy infected places. Baby feeding products, personal products, office supplies and other easily overlooked and difficult to sterilize products, are what UVC LEDs are most useful on. Highly used surfaces like buttons on ticket machines and doorways can implement innovative UVC LED disinfection functionality in order to be safe for all users.
The research published in the nature journal, shows that when a person sneezes, the fluid can travel up to eight meters, a cough can travel up to six meters and can remain in the air for 10 minutes, making it easy for susceptible people to get sick by inhaling it. In order to reduce the incidence of disease, air disinfection systems may be installed at the HVAC level or in auxiliary business and consumer devices like air purifiers. Especially, UVC LEDs can be installed in the ventilation systems of any type of vehicle or public area because of its compact and reliable. UVC light enables high germicidal efficacy in air systems since ultraviolet wavelengths transmit through the air easily to kill transported germs. UVC LEDs not only disinfect the air itself, but they also help keep filter units clean by prevention of mold buildup.
Pathogens can invade new hosts through contaminated water. Over one billion people lack a reliable source of clean drinking water (nearly one in every seven). Globally, nearly 3.4 million people–mostly children–die of water-related diseases annually. Despite developed municipal water treatment systems, hazards persist, largely because infection can be introduced in the downstream distribution. UVC LED disinfection may be applied to portable water containers and in the faucet and pipes at the dispense point. UVC light does not change the odor or taste of water that has been disinfected, which is a really “green” light source which does not contain mercury or other hazardous substances.
Following the use of UVC sterilizing devices at airports in the United States and hospitals in China, the south Korean city of Ansan is supporting prevention activities to prevent the spread of the new coronavirus through “sterilizing robots” using UVC LED technology, according to a recent report in south Korean media. Disinfection robots use safe ultraviolet disinfection, without the use of chemicals, are harmless to the human body. Within 30 seconds, 99.99% of the coronavirus and harmful pathogens can be killed.
Compared with mercury ultraviolet lamps, UVC LEDs have higher energy density, which is convenient for use in small and confined spaces, allowing seamless man-machine coexistence. Overcoming the disadvantages of traditional mercury ultraviolet lamps which can only be used when there are no humans or animals in the area. UVC LEDs truly have huge application prospects.