The AccExpert Privacy Filter for 21.5-inch monitors is designed to keep your sensitive data secure by blocking side-view visibility, ensuring that only the person sitting directly in front of the screen can see the content. This universal protector fits displays with a 16:9 aspect ratio and serves as a functional barrier against dirt, scratches, and other physical damage. Beyond privacy, the film features anti-glare and anti-reflection properties that reduce eye strain by minimizing distracting light bounces from overhead lamps or windows. It comes with all necessary mounting materials and instructions, making it a practical choice for office workers or professionals who handle confidential information in open workspaces.