Ocular and Facial Far-UVC Doses from Ceiling-Mounted 222 nm Far-UVC Fixtures.

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 po

SUBMITTER: Duncan MA 

PROVIDER: S-EPMC10087841 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature