3M Privacy Filter, 21.5" Widescreen

3M privacy filters darken screen data when viewed from the side.
Helps protect your LCD screen from dents, scratches and dust.
Matte surface of the filter reduces reflection for comfortable viewing.
3M Privacy and Screen Protector Selector: https://www.3m.com/3M/en_US/privacy-screen-protectors-us/resources/productfinder/