A shield for controlling air, spray and airborne debris generated by a wheel of an automotive vehicle when traveling on a roadway surface. The shield includes a planar frame having front and rear surfaces and top, side and bottom borders. The shield is adapted to be disposed above the roadway surface vertically depending from the vehicle and spaced rearwardly from the vehicle wheel in a plane extending transversely to the vehicle. A plurality of downwardly and rearwardly oriented louvers are fixed on the frame to extend rearwardly beyond its rear surface, so as to be oriented horizontally (when the shield is in position on the vehicle) between the side borders, and the louvers are shaped so as to permit, when the vehicle is moving, a flow of air, spray and airborne debris through the shield and downward deflection thereof as they pass between louvers.