Sview Privacy Filter is a special function film which provides a clear view from the front and limits 60° of viewing angle from the front so that any person besides you can not see your screen. It protects your private information.Micro-Louver TechnologyThe micro-louver layer is the core of our Privacy Filter. The micro-louvers of the screen control the viewing angles and fulfil the protection of private information.49% Blue Light CutSview Privacy Filter cuts about 49% of harmful Blue Light wavelength(380~500nm) from the screen. It prevents eye strain and makes you have a deep sleep.Two Easy Installation OptionsYou could easily install Sview Privacy Filter on the screen with two options.Option1: Double Sided Tape & Option2: Slide-on/off Tabs.99% Anti-BacterialWe got the SGS test report of 99.9% Anti-Bacterial performance.It will keep you safe from Escherichia coli, Stalococcus aureus, Klebsiella pneumonia and so on.Anti-GlareAnti-Glare makes screen prevent from glare and reduces eye fatigue.Anti-Scratch & Anti-FingerprintAnti-Scratch & Anti-Fingerprint prevents the screen from scratches and fingerprints.