1、Wide Compatibility: 22 inch laptop screen filter is compatible with for HP, for Dell, for Acer, for Asus, for Samsung, for ViewSonic, etc. Bringing you professional use results. 2、Viewing Angle Restriction: The filter makes the viewing angle of the laptop screen will be limited to between 30 and 60 degrees. The person sitting in front of the laptop sees the screen very clearly, while the sides are not visible. 3、Eye Protection: The upgraded film protects your eyes by filtering 96% of UV rays and suppressing 65% of blue light, as well as being anti glare and scratch resistant! 4、Wide Scenes: Ideal for maintaining screen security in high traffic areas, such as open workspaces, airports, airplanes, coffee shops, office environments, financial institutions, and other public places. 5、Visual Effect: The computer screen protector retains the original color and brightness of the laptop, ensuring amazing visual effects without compromising protection.