Narrows the field of vision on the monitor to +/- 30 degrees, helping you keep the information on your screen private and reducing the chances of a visual data breach. Filters out the harmful rays by up to 30%, easing eye strain and reducing the chances of blue light interrupting your natural sleep patterns. The privacy screen can be mounted either with the included frameless tab holders that attach to the edges of your monitor, letting you quickly and easily insert or remove the privacy screen, or you can mount it with double-sided tape that adheres directly to the screen for a cleaner look.