ArticleScientific reports2022
Far-UVC (222 nm) efficiently inactivates an airborne pathogen in a room-sized chamber.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
59 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Managing infectious aerosols to counter engineered pandemics: Current recommendations and future research.Risk analysis : an official publication of the Society for Risk Analysis · 2025Guideline
- Environmental Disinfection in Long-Term Care Facilities-A Scoping Review.Microorganisms · 2026Review
- Role of Nitrate-Driven Radical Formation in Microorganism Inactivation under 222 nm UV Irradiation.ACS ES&T water · 2026Article
- Determinants of Microbial Resistance to Far-UVC 222 nm in Healthcare Pathogens: A Narrative Review.Life (Basel, Switzerland) · 2026Review
- A review on applications and safety of 222 nm far UVC light for surface and air disinfection.Biophysical reviews · 2026Review
- Efficacy of continuous UV-CInfection control and hospital epidemiology · 2026Article
- Efficacy of ambulance air purifiers with different photocatalytic oxidation components in the removal of Bacillus subtilis spores.Scientific reports · 2026Article
- Lighting the way or casting new shadows? A One Health perspective on light-based technologies against clinically important antimicrobial-resistant bacteria.Frontiers in cellular and infection microbiology · 2026Article
- Novel use of far UV-C light as a surface disinfectant in the poultry industry: trials on broiler farms show reduced bacterial burden in poultry anterooms and on wellington boots.Poultry science and management · 2026Article
- A 266-nm multi-reflection laser curtain for airborne bacterial inactivation in a 20-mFrontiers in public health · 2026Article
- The potential effectiveness of far-UVC (222 nm) in preventing infections in long-term care facilities: a six-month nonrandomized controlled phase II trial.Antimicrobial stewardship & healthcare epidemiology : ASHE · 2026Article
- Label-free visualization and quantitative analysis of Far UV-C skin safety with dynamic optical coherence tomography with subcellular resolution.Biomedical optics express · 2025Article
- The Impact of UVC Light on Indoor Air Chemistry: A Modeling Study.Environmental science & technology · 2025Article
- Corneal safety assessment of germicidal far UV-C radiation.Scientific reports · 2025Article
- Photoaging Promotes Toxic Micro/Nanoplastics Release from PLA/PBAT Biodegradable Plastic in Gastrointestinal Condition.Environment & health (Washington, D.C.) · 2025Article
- Factors Affecting Reduction of Infectious Aerosols by Far-UVC and Portable HEPA Air Cleaners.ACS ES&T air · 2025Article
- UV radiation at 222, 254, and 282 nm inhibits sporulation and suppresses infectivity ofMicrobiology spectrum · 2025Article
- Article
- Evaluation of the antimicrobial effect of a far-uv radiation lamp in a real-life environment.Infection prevention in practice · 2024Article
- Human exposure to air contaminants under the far-UVC system operation in an office: effects of lamp position and ventilation condition.Scientific reports · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors.
Funding
Abstract
Many infectious diseases, including COVID-19, are transmitted by airborne pathogens. There is a need for effective environmental control measures which, ideally, are not reliant on human behaviour. One potential solution is Krypton Chloride (KrCl) excimer lamps (often referred to as Far-UVC), which can efficiently inactivate pathogens, such as coronaviruses and influenza, in air. Research demonstrates that when KrCl lamps are filtered to remove longer-wavelength ultraviolet emissions they do not induce acute reactions in the skin or eyes, nor delayed effects such as skin cancer. While there is laboratory evidence for Far-UVC efficacy, there is limited evidence in full-sized rooms. 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). This reduction was achieved using Far-UVC irradiances consistent with current American Conference of Governmental Industrial Hygienists threshold limit values for skin for a continuous 8-h exposure. Our data indicate that Far-UVC is likely to be more effective against common airborne viruses, including SARS-CoV-2, than bacteria and should thus be an effective and "hands-off" technology to reduce airborne disease transmission. The findings provide room-scale data to support the design and development of effective Far-UVC systems.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.