3M 75254 Notebook privacy filter

The PF13.3 Notebook Privacy Computer Filter helps protect your private information from falling into the wrong hands and it helps shield your laptop screen from damage. The PF13.3 fits notebook computers a 13.3" screen. Notebook privacy filters keeps confidential and private information private; they utilize 3M's microlouver privacy technology, so only persons directly in front of the monitor can see the image on screen - passersby see only a dark screen. The filter protects fragile LCD screens from scratches and damage. The filter stays in place even when laptop is closed.