The 22W Monitor Privacy Filter utilises the patented 3M microlouver privacy technology to dim the screen and block the vision of wandering eyes from viewing your screen while at work. It also guards your screen from scratches and smears. Lightweight and easy to install, including 3M Command™ strips High-grade optical film ensures high clarity with no distortion Anti-reflective coatingMaintains high clarity Residue-free removalEasy to apply and remove