![]() Vegetative bacteria were most susceptible to UVGI, with bacteria and fungal spores being substantially more resistant. During this research, UVGI lamps were experimentally demonstrated to inactivate bioaerosols composed of vegetative bacteria, bacteria spores, or fungal spores to a reproducible degree under conditions of fixed dose. This document reports the results of a project to investigate the ability of UVGI lamps to inactivate representative environmental microbial aerosols in ventilation ducts. In-duct applications are generally more concerned with controlling environmental organisms than with controlling infections agents. Ventilation duct use of UVGI has been increasing. ![]() Most reports have focused on the control of infectious diseases, such as tuberculosis (TB), in the occupied spaces of medical facilities. Germicidal ultraviolet (UVGI) lamps have a long history of use for inactivating microbial aerosols. ![]()
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March 2023
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