Whilst maintaining a crystal clear screen from the front of your laptop, the Fellowes blackout privacy filter has the ability to black out your computer screen from a 30 degrees side angle in order to protect your laptops on screen content simply and easily. Not only does the Privascreen privacy filter shield your laptops on screen information from prying eyes - the privacy screen also acts as a screen protector, protecting your laptop screen from scratches and fingerprints. To prevent eye strain, the Privascreen blackout privacy filter also features a reversible option, which offers a matte side of the filter that helps to reduce glare on your laptop screen.