PURPOSE: To improve the wiping performance by impinging the focused compressed air concentrically against the front glass face and wiping the rain drip through air flow layer to be formed when said air flow disperses/overflows along the glass face.

CONSTITUTION: Focused and compressed air flow is injected through a nozzle 1 against the front glass face 2 with proper attack angle. The air flow impinged against the glass face will disperse/overflow along the glass face to form an air flow layer. Said air flow layer will wipe the rain drip and to prevent adhesion of rain drip onto the glass face.