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Research & Publications
We have collected a selection of important scientific articles and other research on Far UV-C light and its effect on pathogens and people.
Far UV-C light (222 nm) efficiently and safely inactivates airborne human coronaviruses
This peer-reviewed article from Scientific Reports, shows that continuous Far UV-C exposure in occupied public locations at the current regulatory exposure limit (~3 mJ/cm2/hour) would result in ~90% viral inactivation in ~8minutes, 95% in ~11minutes, 99% in ~16minutes and 99.9% inactivation in ~25minutes. Thus while staying within current regulatory dose limits, low-dose Far UV-C exposure has the potential to safely provide a major reduction in the ambient level of airborne coronaviruses in occupied public locations.
Far UV-C light: A new tool to control the spread of airborne-mediated microbial diseases
In this peer-reviewed article from Scientific Reports, it is shown for the first time that Far UV-C efficiently inactivates airborne aerosolized viruses, with a very low dose of 2mJ/cm2 of 222 nm light inactivating >95% of aerosolized H1N1 influenza virus. Continuous very low dose-rate Far UV-C light in indoor public locations is a promising, safe and inexpensive tool to reduce the spread of airborne-mediated microbial diseases.
Long‐term Effects of 222 nm ultraviolet radiation C Sterilizing Lamps on Mice Susceptible to Ultraviolet Radiation
In this peer-reviewed article it is shown for the first time that Far UV-C efficiently inactivates airborne aerosolised viruses, with a very low dose of 2mJ/cm2 of 222 nm light inactivating >95% of aerosolized H1N1 influenza virus. Continuous very low dose-rate Far UV-C light in indoor public locations is a promising, safe and inexpensive tool to reduce the spread of airborne-mediated microbial diseases.
Evaluation of acute corneal damage induced by 222-nm and 254-nm ultraviolet light in Sprague-Dawley rats
This peer-reviewed article evaluated acute corneal damage induced by 222 and 254 nm UV light in albino rats. In the study, no corneal damage was induced by 222 nm UV light, which suggests that 222 nm UV light may not harm rat eyes within the energy range and may be useful for sterilising or preventing infection in the future.
Chronic irradiation with 222 nm UVC light induces neither DNA damage nor epidermal lesions in mouse skin, even at high doses
In this study, chronic irradiation with 222 nm UV-C light was revealed not to induce mutagenic or cytotoxic effects in the epidermis of mice. These results indicated that 222 nm UV-C light emitted from the lamp apparatus (or device), which was designed to attenuate harmful light present in wavelengths of more than 230 nm, represents a promising tool for the reduction of SSI incidence in inpatients and hospital staff.
Publications
We have collected a selection of important scientific articles and other research on Far UV-C light and its effect on pathogens and people.
Far-UVC light (222 nm) efficiently and safely inactivates airborne human coronaviruses
Effectiveness of 222-nm ultraviolet light on disinfecting SARS-CoV-2 surface contamination
Far-UVC light: A new tool to control the spread of airborne-mediated microbial diseases
Disinfection capabilities of a 222 nm wavelength ultraviolet lighting device: a pilot study
Predicting airborne coronavirus inactivation by far‑UVC in populated rooms using a high‑fidelity coupled radiation‑CFD model
Disinfection and healing effects of 222-nm UVC light on methicillin-resistant
Inactivation of Coronaviruses and Phage Phi6 from Irradiation across UVC Wavelengths
Far UV-C Radiation: Current State-of Knowledge
Anti-microbial effect of filtered 222nm excimer lamps in a hospital waiting area
Evaluation of acute reactions on mouse skin irradiated with 222 and 235 nm UV-C
Extreme Exposure to Filtered Far-UVC: A Case Study
Exploratory clinical trial on the safety and bactericidal effect of 222-nm ultraviolet C irradiation in healthy humans
Far-UVC wavelengths for disinfection are unlikely to harm skin
Repetitive irradiation with 222nm UVC noncarcinogenic, safe for sterilizing human skin
Long-term effects of 222 nm ultraviolet radiation C sterilizing lamps on mice susceptible to ultraviolet radiation
Germicidal Efficacy and Mammalian Skin Safety of 222-nm UV Light
Further evidence that far-UVC for disinfection is unlikely to cause erythema or pre-mutagenic DNA lesions in skin
Harmless Effects of Sterilizing 222-nm far-UV Radiation on Mouse Skin and Eye Tissues
The impact of far-UVC radiation (200–230 nm) on pathogens, cells, skin, and eyes – a collection and analysis of a hundred years of data
Minimal, superficial DNA damage in human skin from filtered far-ultraviolet-C (UV-C)
Chronic irradiation with 222-nm UVC light induces neither DNA damage nor epidermal lesions in mouse skin, even at high doses
Need to Revise Human Exposure Limits for Ultraviolet UV‐C Radiation
Computer Modeling Indicates Dramatically Less DNA Damage from Far-UVC Krypton Chloride Lamps (222 nm) than from Sunlight Exposure
Evaluation of acute corneal damage induced by 222-nm and 254-nm ultraviolet light in Sprague–Dawley rats
Boeing - Safety of 222 nm Band-Pass Filtered Irradiation
ACGIH 2021 Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs)
ISO 15858:2016 UV-C Devices — Safety information — Permissible human exposure