To use these safety goggles, simply put them on your face and adjust the elastic strap to fit comfortably. Make sure the goggles form a tight seal around your eyes to get the best protection. When you're done using them, clean the goggles with a soft, damp cloth. Avoid using harsh chemicals as they may damage the anti - fog coating. Store the goggles in a cool, dry place, and keep them in their individual packaging when not in use. If the goggles get scratched or damaged, it's time to replace them to ensure continued eye protection.