It has been 5 months since I have the same protection film on my gear and made it is still not taken off. Follow the instructions to ask the film, do not be afraid to spray the entire film (duplex), which allows to do clisser on the screen to position the. Then the bubbles can be removed without problem.
I ordered another product that I put forth in the trash, its 3 protective films are great and strong. Recommend !!