Germicidal UV lights could be producing indoor air pollutants, study finds

Image credits: José-Luis Olivares, MIT; iStock. Article by David Chandler. MIT News – October 17, 2023. Study: Indoor Air Quality Implications of Germicidal 222 nm Light.

While useful for killing pathogens including SARS-CoV-2, the lights may cause unwanted chemical reactions and should be used with ventilation, researchers say.

Many efforts to reduce transmission of diseases like Covid-19 and the flu have focused on measures such as masking and isolation, but another useful approach is reducing the load of airborne pathogens through filtration or germicidal ultraviolet light. […]

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