Mabook Air 13 A1932 A2179 Screen Protector, Anti Blue Light Glare Screen Filter with Keyboard Cover for 2020 2019 Macbook Air 13 A1932 A2179 Laptop Eye Protection Blue Light Blocking Screen Protector

What is Blu-light? Blue light refers to light with a wavelength of 380-495 nm and it's a kind of visible light. Blue light is short and has high energy. It can penetrate the lens directly to the retina of the fundus. Bluelight is widely used in LED light sourced products such as PCs, Cell Phones, Tablets, Game machines and TVs. However, mobile phone screens, LEDs, and computer screen lights all generate a lot of blue light. This can cause harm to people's eyes and skins, and cause eye fatigue and may even cause age-related macular degeneration which not only resulting in visual fatigue, but also not conducive to normal sleep. Why You need to buy the Anti Blue Light Screen Protector? Features: 1.Filter out Blue Light 2.UV400 protection 3.Relieve the fatigue of eyes 4.Radiation Protection: Through the absorption and conversion of ultraviolet rays, it prevents the dry skin caused by UV reflections from causing skin pigmentation, chloasma and other problems 5.Anti-fingerprint, Scratch Resistant(9H), HD Retina Clarity Package Included: - 1 x Anti-Blue Light Screen Protector for 2019 2018 Macbook Air 13 A1932 Laptop - 1 x Microfiber Cloth - 1 x Wet Cleaner - 1 x Dust Remover sticker How To Apply: 1.Check the filter dimension is suitable for your screen. 2.Clean your laptop screen with the microfiber cloth. 3.Remove the fine dust with dust removal sticker. 4.Peel off the backside protective film gently before applying to the screen, align the clear screen protector starting at the top. 5.Gently peel off the lable 1. 6.Gently apply pressure around the borders to secure it in place.