Exposure of human skin models to KrCl excimer lamps: the impact of optical filtering

Summary

Lab-grown human skin models exposed to krypton-chloride lamps showed damage when the lamp's longer wavelengths were not filtered out, and little when they were. It supports using filtered 222 nm lamps and avoiding unfiltered ones.

Key points

• Unfiltered KrCl lamps emit harmful longer wavelengths.
• Optical filtering greatly reduced skin damage in the models.
• Skin models in the lab, not people.