ArticlePhotochemistry and photobiology2023
Ocular and Facial Far-UVC Doses from Ceiling-Mounted 222 nm Far-UVC Fixtures.
Article in Photochemistry and photobiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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
9 citing papers in PubMed.
- Evaluation of ultraviolet irradiation at 254 nm and 222 nm in inactivating human noroviruses on surfaces.Applied and environmental microbiology · 2026Article
- A review on applications and safety of 222 nm far UVC light for surface and air disinfection.Biophysical reviews · 2026Review
- Corneal safety assessment of germicidal far UV-C radiation.Scientific reports · 2025Article
- Effects of 222 nm Germicidal Ultraviolet Light on Aerosol and VOC Formation from Limonene.ACS ES&T air · 2024Article
- Disinfecting the air with far-ultraviolet light.Nature · 2022Article
- 222 nm Far-UVC from filtered Krypton-Chloride excimer lamps does not cause eye irritation when deployed in a simulated office environment.Photochemistry and photobiologyArticle
- Film dosimetry for occupant exposure monitoring within Far-UVC installations.Photochemistry and photobiologyArticle
- Virus inactivation and skin safety studies using far-UVC LEDs.Photochemistry and photobiologyArticle
- Interventional human ocular safety experiments for 222-nm far-ultraviolet-C lamp irradiation.Photochemistry and photobiologyArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
Abstract
Far-UVC radiation, defined in this paper 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 the recommended daily safe exposure limits. This study used a ceiling-mounted far-UVC fixture emitting at 222 nm to directly irradiate an indoor space and then evaluated the doses received upon a manikin. Radiation-sensitive film was affixed to the head, nose, lip and eyes of the manikin, and the 8-h equivalent exposure dose was determined. Variables examined included manikin height (sitting or standing position), manikin offset from directly below the fixture, tilt of the manikin, the addition of glasses, the addition of hair and different anatomical feature sizes. Importantly, at the manikin position with the highest dose to eyes, the average eye dose was only 5.8% of the maximum directly measured dose. These results provide the first experimental analysis of possible exposure doses a human would experience from an indoor far-UVC installation.
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Registered trials
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.