Using these safety goggles is easy. First, adjust the strap to fit your head comfortably. Put the goggles on, making sure the frame seals well around your eyes. You can wear them for extended periods as they're very comfortable. When using them, avoid touching the anti - fog coating with dirty hands as it may reduce its effectiveness. After each use, gently wipe the goggles with a soft, clean cloth to remove any debris or moisture. Store them in a dry place away from direct sunlight to maintain their quality.