Exposing Human Skin Models to KrCl Excimer Lamps

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Recent studies have highlighted the significant potential of far-UVC technology, particularly in the range of 200-230 nm, for safely eliminating harmful microbes, including drug-resistant bacteria and viruses like SARS-CoV-2. 

This innovative approach offers a new layer of protection in indoor public spaces such as hospitals, schools, and other high-traffic areas where the risk of airborne and surface-transmitted diseases is high.

Enhanced Safety with Filtered Far-UVC

One of the key advancements in far-UVC technology is the use of filtered KrCl excimer lamps. These filters allow for the exclusion of longer, potentially harmful UV wavelengths, focusing instead on the 222 nm wavelength. 

This specific wavelength has been proven to be just as effective as traditional germicidal UV radiation, typically emitted at 254 nm by low-pressure mercury lamps, in killing a wide variety of microbial pathogens.

Key Findings from Recent Research:

  • Increased Allowable Exposure: Analysis of effective irradiances has shown that using a filter significantly increases the allowable exposure to far-UVC light, making it safer for continuous use in occupied spaces.
  • Minimal DNA Damage: Studies using a 3-D human skin model have demonstrated that filtered far-UVC light, even at doses up to 150 mJ cm−2, does not induce significant DNA damage in skin cells. While a small amount of CPD (cyclobutane pyrimidine dimers) formation was observed at a much higher dose (500 mJ cm−2), this level is far above typical exposure levels, further underscoring the safety of the technology.
  • Effective Against a Broad Range of Pathogens: Far-UVC light at 222 nm has been shown to inactivate not only common influenza viruses but also more dangerous pathogens such as human coronaviruses, including SARS-CoV-2. This broad-spectrum efficacy positions far-UVC as a promising tool in the fight against current and future pandemics.

Applications of Far-UVC in Public Spaces

The ability to safely and effectively disinfect both air and surfaces in real-time makes far-UVC technology particularly valuable in settings where people gather and where traditional disinfection methods may fall short.

Benefits of Far-UVC in Public Locations:

  1. Continuous Disinfection in Occupied Spaces: Far-UVC light can be used continuously in spaces where people are present without posing health risks, making it ideal for high-traffic areas like hospitals, schools, and offices.
  2. Reduction in Disease Transmission: By inactivating airborne and surface-bound pathogens, far-UVC technology helps reduce the spread of diseases, including seasonal infections and more severe outbreaks like tuberculosis and influenza.
  3. Versatility and Safety: The technology’s ability to neutralize a wide range of pathogens, combined with its safety for human exposure, makes it a versatile tool for public health. Whether installed in elevators, classrooms, or medical facilities, far-UVC offers an additional layer of protection.

My Lumens Artemis Far-UVC Disinfection Devices

One of the leading products in this field is the My Lumens Artemis Far-UVC Disinfection Device, equipped with the Care222 module. Developed by Ushio, Japan, this device utilizes the filtered far-UVC 222 nm technology to deactivate bacteria and viruses safely.

Key Features of the Artemis Far-UVC Device:

  • Safe for Continuous Use: Unlike traditional UV sanitizers, the Artemis device does not cause sunburn, skin cancer, or cataracts, making it safe for use in occupied spaces.
  • Effective Against a Range of Pathogens: The device is capable of destroying the DNA and RNA of viruses and bacteria, providing comprehensive sterilization in public spaces.
  • User-Friendly Design: The device can be easily installed on ceilings, making it a convenient option for a wide range of environments without disrupting the existing aesthetic or functionality of the space.

The Future of Public Health Protection

As the world becomes increasingly aware of the importance of preventing airborne and surface-mediated diseases, far-UVC technology is expected to play a crucial role in the new landscape of public health. With its proven efficacy and safety, products like the My Lumens Artemis Far-UVC Disinfection Device are set to become integral in safeguarding public spaces.

For more detailed information on Ushio’s Care222 technology, visit www.care222.com.