An Excimer Lamp to Provide Far-UVC Irradiation for Dining-Table Disinfection
Nature Scientific Reports / January, 2023 “By varying the lamp irradiance output, the number and positions of the lamps, the far-UVC irradiation can achieve a 3-log reduction for a dining duration of 5 min. Besides, the far-UVC lamp has a low damage risk to diners when achieving an effective inactivation rate.“ Link to article.
Far-UVC Against E. coli
American Journal of Infection Control / November, 2022 “The present study clearly showed a bactericidal effect of far-UVC on ESBL-producing E. coli. We believe that irradiation with far-UVC may be potentially effective in preventing infection by ESBL-producing E. coli in health care settings.” Link to article.
Ocular and Facial Far-UVC Doses from Ceiling-Mounted 222 nm Far-UVC Fixtures
Far-UVC radiation, defined as ultraviolet (UV) radiation with wavelengths from 200 to 235 nm, is a promising tool to help prevent the spread of disease. The unique advantage of far-UVC technology over traditional UV germicidal irradiation lies in the potential for direct application of far-UVC into occupied spaces since antimicrobial doses of far-UVC are significantly below […]
No Evidence of Induced Skin Cancer or Other Skin Abnormalities after Long-Term (66 week) Chronic Exposure to 222-nm Far-UVC Radiation
Far-UVC radiation, typically defined as 200–235 nm, has similar or greater anti-microbial efficacy compared with conventional 254-nm germicidal radiation. In addition, biophysical considerations of the interaction of far-UVC with tissue, as well as multiple short-term safety studies in animal models and humans, suggest that far-UVC exposure may be safe for skin and eye tissue. Based on […]
Whole Room Air Cleaning for High Bioburden Spaces
Nature Scientific Reports / March, 2022 “For the first time, we show that Far-UVC deployed in a room-sized chamber effectively inactivates aerosolised Staphylococcus aureus. At a room ventilation rate of 3 air-changes-per-hour (ACH), with 5 filtered-sources the steady-state pathogen load was reduced by 98.4% providing an additional 184 equivalent air changes (eACH). “ Link to […]
The Impact of Far-UVC Radiation on Pathogens, Cells, Skins, and Eyes
GMS Hygiene and Infection Control / February, 2021 “Far-UVC – especially at a wavelength of 222 nm – is very effective against all pathogens…this is not a short-term solution for the current pandemic, but may be suitable for future technological approaches for decontamination in rooms in the presence of people or for antisepsis.” Link to […]
Far-UVC Against Influenza
Journal of Hospital Infections / February, 2021 “The 222-nm UVC is able to inactivate a wide spectrum of microbial pathogens. In comparison with the conventional 254-nm UVC, the germicidal effect of 222-nm UVC to the fungal hyphae and spores is low, but the 222-nm UVC exhibits strong germicidal effect to the bacterial endospores.” Link to […]
UVC for NASA: Reducing Bioburden in Spacecrafts with Far-UVC Light
Advances in Space Research / January, 2021 “The major advantage of far-UVC (222 nm) compared to traditional germicidal UVC (254 nm) is the potential for application throughout the spacecraft assembly process in the presence of humans without adverse health effects due to the limited penetration of far-UVC light into biological materials.” Link to article.
Far-UVC Efficiently and Safely Inactivates Airborne Human Coronaviruses
Nature Scientific Reports / June, 2020 “We previously demonstrated that 222-nm far-UVC light efficiently kills airborne influenza virus and we extend those studies to explore far-UVC efficacy against airborne human coronaviruses alpha HCoV-229E and beta HCoV-OC43.” Link to article.
Far-UVC Current Knowledge Summary From the Leading, Independent Experts
International Ultraviolet / May, 2020 “The significance of Far UVC is that, whereas exposure to conventional germicidal UV (250-280 nm) at germicidal doses is potentially hazardous, biophysical and experimental evidence suggest this is not the case for Far UV-C…” https://iuva.org/resources/covid-19/Far%20UV-C%20Radiation-%20Current%20State-of%20Knowledge.pdf