Model evaluation of secondary chemistry due to disinfection of indoor air with germicidal ultraviolet lamps

Z Peng, SL Miller, JL Jimenez - Environmental Science & …, 2022 - ACS Publications
Air disinfection using germicidal ultraviolet light (GUV) has received increasing attention
during the COVID-19 pandemic. GUV uses UVC lamps to inactivate microorganisms, but it …

Effects of 222 nm Germicidal Ultraviolet Light on Aerosol and VOC Formation from Limonene

OJ Jenks, Z Peng, MK Schueneman, M Rutherford… - ACS ES&T …, 2024 - ACS Publications
Since the 1930s, germicidal ultraviolet (GUV) irradiation has been used indoors to prevent
the transmission of airborne diseases, such as tuberculosis and measles. Recently, it has …

Unwanted indoor air quality effects from using ultraviolet C lamps for disinfection

F Graeffe, Y Luo, Y Guo, M Ehn - Environmental Science & …, 2023 - ACS Publications
Ultraviolet germicidal irradiation (UVGI) is known to inactivate various viruses and bacteria,
including SARS-CoV-2, and is widely applied especially in medical facilities. This …

Indoor air quality implications of germicidal 222 nm light

VP Barber, MB Goss, LJ Franco Deloya… - Environmental …, 2023 - ACS Publications
One strategy for mitigating the indoor transmission of airborne pathogens, including the
SARS-CoV-2 virus, is irradiation by germicidal UV light (GUV). A particularly promising …

Significant production of ozone from germicidal UV lights at 222 nm

Z Peng, DA Day, GA Symonds, OJ Jenks… - … & Technology Letters, 2023 - ACS Publications
Lamps emitting at 222 nm have attracted recent interest for germicidal ultraviolet disinfection
(“GUV222”). Their impact on indoor air quality is considered negligible. In this study, ozone …

Ozone generation from a germicidal ultraviolet lamp with peak emission at 222 nm

MF Link, A Shore, BH Hamadani… - … science & technology …, 2023 - ACS Publications
Recent interest in commercial devices containing germicidal ultraviolet lamps with a peak
emission wavelength at 222 nm (GUV222) has focused on mitigating virus transmission …

Reflection of UVC wavelengths from common materials during surface UV disinfection: Assessment of human UV exposure and ozone generation

B Ma, S Burke-Bevis, L Tiefel, J Rosen… - Science of The Total …, 2023 - Elsevier
The COVID-19 pandemic has promoted interest in using devices emitting ultraviolet-C
(UVC) irradiation (200–280 nm) for surface disinfection to reduce pathogen transmission …

Far UV-C radiation: An emerging tool for pandemic control

ER Blatchley III, DJ Brenner, H Claus… - Critical Reviews in …, 2023 - Taylor & Francis
Far UV-C, informally defined as electromagnetic radiation with wavelengths between 200
and 230 nm, has characteristics that are well-suited to control of airborne pathogens …

Ultraviolet germicidal irradiation (UVGI) for in-duct airborne bioaerosol disinfection: Review and analysis of design factors

H Luo, L Zhong - Building and environment, 2021 - Elsevier
The rapid increase in global cases of COVID-19 illness and death requires the
implementation of appropriate and efficient engineering controls to improve indoor air …

Numerical investigation of upper‐room UVGI disinfection efficacy in an environmental chamber with a ceiling fan

S Zhu, J Srebric, SN Rudnick… - Photochemistry and …, 2013 - Wiley Online Library
This study investigated the disinfection efficacy of the upper‐room ultraviolet germicidal
irradiation (UR‐UVGI) system with ceiling fans. The investigation used the steady‐state …