The filtered 222nm technology utilizes an excimer lamp that employs a specially designed short pass filter to remove harmful UV wavelengths, resulting in a narrow band of UV centered at 222nm. Excimer lamps are arc discharge light sources with a special chamber filled with noble gas, completely mercury-free and without electrodes.
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May 27, 2019 · Two hundred twenty-two nanometres ultraviolet (UV) light produced by a krypton–chlorine excimer lamp is harmful to bacterial cells but not skin. However, the effects of 222-nm UV light exposure to the eye are not fully known. We evaluated acute corneal damage induced by 222- …
At 222nm, relatively small doses over time are needed to inactivate bacteria and viruses to reduce the pathogenic bioburden on the surface that is in contact with the UV light. Acuity Brands luminaires with Care222® pulse the 222nm at a dose for continual operation in the occupied space to meet the ACGIH® 8-hour Threshold Limit Value (TLV).
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Far Ultra Violet light with 222 nm wavelength is the newest disinfection technology that relies on a narrow 222 nm UVC light band. This was made possible by recent advances in light bulb and filtering technologies that allow efficient separation of very narrow light …
Ideal applications for continual air and surface disinfection solutions include office conference rooms, house of worship, restaurants, classrooms and other high-touch spaces. Utilizing 222nm wavelengths, the UV light can inactivate viruses and bacteria by disrupting the RNA and DNA, preventing reproduction. Learn more about Care222®
222nm UV Light Effectively Kills COVID-19 Virus. Friday 18th September 2020. Hiroshima University r esearchers offer proof that UV-C light can be a promising disinfection system for occupied public spaces.
Monochromatic 222 nm UV light: Development of a safe, cost-effective technology for the efficient reduction of bacterial and viral infection and transmission. Award Information. Agency: Department of Health and Human Services. Branch: National Institutes of Health. Contract: 1R41AI125006-01.
Mar 24, 2021 · The 222-nm far-UV systems have been developed that can either be used at high intensity (disinfection <1 s) or provided at lower intensity to provide continuous disinfection of occupied spaces throughout a full day. These systems are currently being installed at U.S. Department of Defense ground facilities for disinfection.
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Exposure within the current ACGIH recommendations and IEC requirements allow microbial reductions using 222nm far-UVC light sources in occupied spaces. Recent studies indicate that higher doses of filtered UV light emitted from the Care222 modules pose a minimal health risk to human skin or eyes.