Influence of Germicidal UV (222 nm) Lamps on Ozone, Ultrafine Particles, and Volatile Organic Compounds in Indoor Office Spaces.

ABSTRACT: Germicidal ultraviolet lamps with a peak emission at 222 nm (GUV222) are gaining prominence as a safe and effective solution to reduce disease transmission in occupied indoor environments. While previous studies have reported O₃ production from GUV222, less is known about their impact on other indoor constituents affecting indoor air quality, especially in real occupied environments. In this study, the effects of GUV222 on the levels of ozone (O₃), ultrafine particles (UFPs), and volatile organic compounds (VOCs) were investigated across multiple offices with varying occupancies. O₃ from the GUV222 operation was observed to increase linearly (∼300 μg h^-1 m^-1) with a UV light path length from 0 to 3 m beyond which it stabilized. When ap

SUBMITTER: Sorensen SB 

PROVIDER: S-EPMC11562711 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature