In addition, the driver's side wiper blade is often equipped with a spoiler that helps to keep it in contact with the windshield at high speeds. The passenger's side wiper blade may or may not have a spoiler, depending on the make and model of the vehicle.
When replacing your wiper blades, it is important to make sure that you purchase the correct size and type of wiper blades for your vehicle. If you install the wrong size or type of wiper blades, they may not work properly and could damage your windshield.