Why Doesn't the Wiper Blade Clean Properly?

[DiNolan]

There are two main reasons why wiper blades don't clean properly: 1. The sticky secretions from insects adhere to the car windshield, creating an uneven surface that's difficult to wipe off; 2. When parked downwind of a central air conditioning cooling tower, the fine water particles sprayed from the tower settle on the glass, forming small white spots that are hard to remove. Wiper blades, also known as windshield wipers, are blade structures installed in front of the windshield. Their components include an electric motor, reducer, four-bar linkage mechanism, wiper arm spindle, and wiper blade. The function of wiper blades is to clear rain, snow, and dust from the windshield that obstruct the driver's view.