1. for MacBook Air Screen Protector 13 inch 69.7% blue light blocking filter blocks the harmful blue light between 380nm~490nm from the wave range of visible lights, blue light reaches the retina with strong energy. This Anti-glare Eye Protection screen filter reduces digital eye strain when viewing screens and gives you a better sleeping. Compatible with 2020, 2019,2018 MacBook Air 13.3 inch Retina Display Model (A1932 &A2179). 2. The latest black frame silicone seal design, before installation, clean the screen and ensure it is dust-free, align the product to the screen, then gently press over on the frame, let the silicone adhered to its frame. Easy to install and remove, 100% bubble-free. Leave no residue when removed and can be repeated paste and use. 3. MacBook Air 13 Screen Protector Blue light screen protector computer laptop workable for short-sighted people, students, office workers, social media addicts, online gamers, fashion lovers, etc. 4. MacBook Air 13 inch screen protector supports unconditional return and exchange within 3 months, please buy with confidence. If you encounter any problems during installation and use, please contact us, we will reply quickly within 24 hours to solve any problems for you.

MacBook Air 13 inch screen protector supports unconditional return and exchange within 3 months, please buy with confidence. If you encounter any problems during installation and use, please contact us, we will reply quickly within 24 hours to solve any problems for you. MacBook Air 13 Screen Protector Blue light screen protector computer laptop workable for short-sighted people, students, office workers, social media addicts, online gamers, fashion lovers, etc. FILMEXT for MacBook Air 13" (2021-2018) with Touch ID M1 A2337 A1932 A2179 Eye Protection Blue Light Blocking Filter. The latest black frame silicone seal design, before installation, clean the screen and ensure it is dust-free, align the product to the screen, then gently press over on the frame, let the silicone adhered to its frame. Easy to install and remove, 100% bubble-free. Leave no residue when removed and can be repeated paste and use. for MacBook Air Screen Protector 13 inch 69.7% blue light blocking filter blocks the harmful blue light between 380nm~490nm from the wave range of visible lights, blue light reaches the retina with strong energy. This Anti-glare Eye Protection screen filter reduces digital eye strain when viewing screens and gives you a better sleeping. Compatible with 2020, 2019,2018 MacBook Air 13.3 inch Retina Display Model (A1932 &A2179).