Abstract: A conforming filter for a video display unit (VDU). The VDU includes a cathode ray tube (CRT) with a curved faceplate and an aperture defining bezel. The filter includes a plastic substrate having a thickness between about 0.8 and 1.2 mm. The thickness is such that the filter may be made to substantially conform to the curvature of a cathode ray tube faceplate. The filter may be assembled in a VDU by removing the bezel, locating the filter adjacent the CRT, and applying pressure around a perimeter region of the filter to cause it to substantially conform to the curvature of the faceplate. The filter may be retained in a conforming position adjacent the faceplate by the bezel. The filter may also be attached to a bezel having a curved surface. The filter conforms to the curvature of the surface when then attached.