Chronic irradiation with 222 nm UVC light induces neither DNA damage nor epidermal lesions in mouse skin, even at high doses

In this study, chronic irradiation with 222 nm UVC light was revealed not to induce mutagenic or cytotoxic effects in the epidermis of mice. These results indicated that 222 nm UVC light emitted from the lamp apparatus (or device), which was designed to attenuate harmful light present in wavelengths of more than 230 nm, represents a promising tool for the reduction of SSI incidence in inpatients and hospital staff.

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