✜ 👀【 Reduces Eye Strain 】-- Reduce Eye Strain and associated discomfort by reducing your exposure to UV and blue light. Our blue light blocking screen protector filters out up to 61% of blue light and up to 99% of UV light to help minimize eye fatigue. 💡 The Blue Light Screen Protector doesn’t have an Anti-Glare function. ✜ 👀【 Blocks Blue Light & UV Light 】-- 5-Layer Design of our blue light filter reduces the effects of blue light waves from 420-460 nanometers. An optically transparent adhesive layer and transmittance of at least 85% ensure image clarity without pixelation. ✜ 👀【 Ideally Compatible 】-- Universally Compatible with all 20"-22" (20", 20.2", 21.5", 21.6", 22") monitors. Actual Filter Size: Width: 19.3 inches (490mm), Height: 12.5 inches (317mm). This versatile blue light protector for computer monitors is engineered to be ideally compatible with HP, Samsung, Dell, Lenovo, Acer, Asus, LG, ViewSonic, and other monitor brands. It is even removable and reusable if you buy a new monitor. ✜ 👀【 Protects Your Monitor 】-- Extend Monitor Longevity by protecting your screen from scratches and dirt. Acting as an outer layer on your monitor, our computer screen protector keeps it free of dust. It comes with its own soft microfiber cleaning wipe. ✜ 👀【 Easy To Install 】-- Mounts Easily in seconds without tools or hardware. 💡Peel the matte protective film away from both sides of the blue light screen protector. Then position the turned edge over the monitor top. ✅ Lifetime Replacement Guarantee – Your blue light screen is protected under our lifetime replacement guarantee and if anything happens we will send you a new screen at absolutely no cost. You can relax worry-free, knowing you can rely on the help of Vintez Technologies.