The differences are: the light transmittance of 360 degrees privacy-protective film (about 60%) is lower than that of 180 degrees film (80%). And 360 degrees film protect privacy in all directions but 180 degrees film in only two directions. 60 degrees refer to the visual angel of the computer user, meaning to look at the screen from an angel of 30 degrees from right or left side to the center line of the screen. Please use 3M authentic privacy-protective products.
