The main function of the fuel vapor recovery nozzle on a fuel dispenser is to capture the oil vapors generated during the refueling process, preventing them from volatilizing into the air and thereby reducing environmental pollution and safety hazards. Not only can it effectively prevent oil vapor volatilization, but its transparent material also allows employees to easily observe the refueling status, preventing spills and splashes of fuel. This design significantly reduces the concentration of oil vapors near the tank opening during motorcycle refueling, achieving notable environmental protection effects.