?LIFETIME FREE SUPPORT? Mamol Macbook screen filters are protected under Mamol lifetime policy and if anything happens we will send you a new anti blue screen at absolutely no cost. So please don't hesitate to place an order, giving your macbook screen best protection in daily life and work. ?Anti Scratch & Washable?Our HD anti-glare Macbook film has a surface enhancement layer to protect the filter from scratches and fingerprints. It is washable and reusable. Even after prolonged use, you will get a brand new HD protector for your Laptop screen after cleaning. Very Durable!. ?Auto Bubble Absorption? Silicone adhesive replaces regular adhesive, allowing the anti-blue light iPad screen protector to automatically fit smoothly to the Mac screen - no air bubbles and no adhesive mess when moving. Before installation, be sure to clean your Mac air13 screen with the accessories we provide to avoid air bubbles. ?Better HD Clartiy? Mamol Blue Light Screen Shield adds an extra layer of AR Ultra HD light transmission compared to others. It maintains the high definition of the screen without sacrificing too much screen brightness. It won't reduce the brightness and cause eye fatigue because of the screen protector installed on the screen. ?Eyes Protection & Reduce Eyestrain? This HD blue screen greatly reduces eye strain and minimizes potential hazards to vision. It filters 99.9% of UV rays and suppresses 98% of blue light from the LCD screen. effectively protect your eyes from eye damage, visual fatigue, eye pain and headaches. Even when working in strong sunlight, this Mac screen protector greatly reduces the appearance of glare and keeps your laptop screen clear. ?Fits Mac 13" Screens?The HD anti blue screen filter is designed exclusively for your MacBook Air 13 inch 2018, 2019, 2020, 2021, M1. (Model: A2337, A1932, A2179) and this privacy screen also for MacBook Pro 13 inch 2016, 2017, 2018, 2019, 2020, 2021, 2022, M1, M2. (Model: A1706, A1708, A2159, A1989, A2251, A2289, A2338). Please check the screen size and model number before purchg this screen film MacBook air 13 inch.