Analysis of laser-generated plume concentration during in-vivo laser hair reduction procedures in a tertiary referral laser dermatology unit DEAR EDITOR, Laser hair reduction is one of the most common cosmetic treatments, representing approximately half of the procedures in the observed unit. However, the selective photothermolysis process produces a malodorous and visible plume (surgical smoke) 1 . In-vitro studies identified 13 carcinogens and 20 environmental toxins 2 ; and literature reviews have identified risks of infection, carcinogenesis, and pulmonary damage from laser dermatology surgical smoke 3 . The British Medical Laser Association (BMLA) guidance 4 emphasises aerosol management for COVID-19 infection risk 4 and risk assessment identified laser-generated
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