1、BLUE LIGHT FILTERING: Laptop screen protector filters harmful blue light with wavelengths between 380‑420nm. The advanced blue light blocking technology protects your eyes, sleep and skin from the negative effects of excessive blue light exposure. 2、UV FILTERING: Laptop monitor eye protection filter film filters 99% of harmful UV rays to help reduce eye strain. For a wide range of HEV protection. Compatible with 14 inch (310x174mm) laptop screens. 3、DURABLE MATERIAL: Laptop blue light blocking screen protector is made of highly translucent PET to protect against screen dust and scratches. Perfect for students, OL, gamers and programmers in the office or at home. 4、EYE PROTECTION: Laptop blue light blocking filter film allows you to enjoy your digital time without worrying about eye strain, blurry vision and headaches. Provides you with better sleep, blue blockers for your eyes and protection for your health. 5、EASY TO INSTALL: Laptop anti UV eye protection filter film is very easy to install, after cleaning your monitor just remove the film on both sides of the computer screen blue light blocker and stick it on, no air bubbles.