What type of screen protector do you use for your Kindle Paperwhite? Do you think they are necessary? This tempered glass screen protector can block 90% of blue light between 380nm and 495nm, providing wide-range HEV protection, as well as Up to 99% high light transmission to restore the real scene with no chromatic aberration, and the 9H hardness and anti-fingerprint coating keep your screen clean while also providing protection against scratches and explosions. Do you often read on your Kindle for extended periods of time? Do you experience eye pain? The blue light emitted from electronic devices, such as the Kindle, can cause blurry vision, eye fatigue, visual fatigue, eye soreness, eye pain, and other diseases if exposure is prolonged. Protect your Eyes This blue light screen protector is designed to protect your eyes from the harmful effects of blue light. It features a layered anti-blue light design and multi-layer filtering of blue light, which can effectively block your eyes even if you use the kindle paperwhite for a long time. This will help reduce eye strain and prevent headaches. Leave No Marks Behind The hydrophobic and oleophobic screen coating helps keep your screen clean. 95% transparency This 0.01-thick tempered screen protector provides 95% ultra-high-definition visual enjoyment, while ensuring the same touch speed as the original. kindly make sure to carefully watch our installation video and consult our guide to correctly eliminate any air bubbles ! Unlike the smooth screens of cell phones and tablets, the reader's screen surface is frosted, resulting in varying speeds of adsorption and the formation of large and small bubbles. Therefore, we recommend using a card to assist in attaching and expelling air during fitting.