To maintain and clean convex mirrors for optimal visibility, follow these essential steps. Firstly, inspect the mirror regularly for signs of wear, damage or dirt accumulation. When cleaning, use a soft, non-abrasive cloth or sponge dampened with a mild soapy solution. Gently wipe the mirror surface in a circular motion, taking care not to scratch or cause damage. Pay close attention to the edges and frame, ensuring all debris is removed. Rinse with clean water and dry using a lint-free cloth. For outdoor convex mirrors, consider Barrier Group products that come with weather-resistant features. Finally, periodically check the mirror's installation, making sure it's securely fastened and properly aligned to provide optimal visibility for users.