Reduces the field of view on the screen to +/- 30 degrees to help keep the information on your screen confidential and lower the risk of a visual data security breach. Filters out up to 30% of harmful light, reducing eye strain and lowering the risk that the blue light component disrupts your natural sleep cycle. One side has a matte finish to reduce glare and fingerprints, while the other side is glossy, providing a clearer view of the monitor. The glare-free matte surface features a special antimicrobial film coating that prevents the growth of mold and bacteria, which could otherwise lead to stains and odors.