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Study reveals UV LED lights effectively kill the coronavirus
2020.12.30

“We discovered that it is quite simple to kill the coronavirus using LED bulbs that radiate UV light.”

— Prof. Hadas Mamane

It is well known that SARS-CoV-2, which is the virus that causes COVID-19, can be spread through respiratory droplets and surfaces contaminated with nasal, mouth and eye secretions. Additionally, SARS-CoV-2 can be viable for several days on common surfaces, such as stainless steel and plastic. At present, the world is looking for effective methods of disinfection or sterilization.

In a landmark study, researchers found that UV LED light can kill the human coronavirus quickly and effectively. After exposing viral suspensions placed in darkened tubes to UV LED light, researchers discovered that both 265 nanometer wavelength and 279 nanometer wavelength can kill more than 99.9% of the coronavirus within 30 seconds. Accordingly, the radiation of UV light is 6-8mJ/cm² in the test.

Because of the hazards of chemical disinfection methods, a physical sterilization based, professionally designed UV LED disinfection system may be a safer and more applicable solution. Researchers believe that the UV-LED technology could soon be put to practical use.

According to Medical News Today

Scientists put UV LEDs to the test

Using the human coronavirus OC43 (HCoV-OC43) as a substitute for SARS-CoV-2, the research team tested different UV LED bulbs emitting varying wavelengths — measured in nanometers (nm) — to see which would effectively inactivate the HCoV-OC43 virus.

The team found that wavelengths of 285 nm were highly effective at inactivating the virus and almost as effective as wavelengths of 265 nm, inactivating 99.9% of the coronavirus in under 30 seconds.

Furthermore, other viruses showed similar sensitivity to these wavelengths, indicating that this technology could be useful against many types of human coronavirus, including SARS-CoV-2.

Our solution: Unisnug UV-LED sterilization box.


Unisnug UV-LED Sterilization box

Inside the device are two UV LEDs with a wavelength of 260 nm to 280nm (UV-C). UV radiation can reach 9mJ/cm² in 10 minutes, even higher than 6-8 mJ/cm². The powerful UV LED light can rapidly destroy the DNA/RNA structure of bacteria and virus to kill them.

According to the authoritative test, in 10 minutes of rapid disinfection, the Unisnug disinfection box can disinfect Escherichia coli and staphylococcus aureus up to 99.9%. Besides, it’s safe and free of chemical residue.

The support bars on the bottom and mirror reflection from the interior, and the surface of an item is completely exposed to UV light, so the items can be completely disinfected. Sterilization box can disinfect a variety of items, including phones, watches, headphones, masks, makeup tools, so long as the item size fits the device. UV bulbs inside the box will turn off automatically once you open the cover, shield you from ultraviolet overexposure.