A pull bar is adapted for attachment to one end of a screen of a sunshade device beneath a sunroof of a vehicle. The pull bar includes an upper strip body and a lower strip body. The upper strip body is adapted to abut against an upper surface of the screen. The lower strip body is adapted to abut against a lower surface of the screen. The upper and lower strip bodies cooperatively define at least one air flow passage that extends through the upper and lower strip bodies to permit air to flow into or out of the vehicle.