Clean the lens with Univet cleaning spray or Univet wet towels** (or repeat washing under cold water*)**The Univet cleaning spray (3QL002- and 3QL004-) and the Univet wet towels (3QL003-) contain a type of alcohol tested and suitable for use on our products.Use a soft and clean microfiber cloth to dry the lensAlways store the glasses and the mask in their protective caseNONever use warm water to clean the glasses as it could damages the treatments on the lens (anti-fog and anti-reflection treatment,…)Do not clean with solvents,detergents and alcohol based cleaning products**Never use clothes, fingers and handkerchiefs to clean the lensesNever put the glasses or the goggles face down