3M PF238W9EM COMPLY Magnetic Privacy Filter for flat screens 23.8" (16:9). The specially treated privacy filter makes the screen clearly visible only from the front, while blocking side viewing, protecting the information on the screen in public or shared spaces. It easily connects and removes using the COMPLY magnetic mounting system. The filter reduces the viewing angle and will darken the image at side angles; it is not recommended for gaming or wide-angle video viewing where full brightness and wide viewing angles are required.