Confidentiality Screen Filter Blue Light Reduction Matte or Glossy 2-Year Warranty. The monitor privacy screen is easy to attach & remove. Simply attach the 27 inch privacy cover to your computer display using the attachment strips or slide-mount tabs. This confidentiality screen filter is also reversible. The matte side provides you with glare reduction & the glossy side of the privacy screen will provide you with increased clarity. Protect Your Privacy The privacy screen protector for desktop monitors is a great investment if you want to protect your privacy & security. It is a convenient & cost-effective way to keep your classified information, intellectual property or any other important data you wish to keep protected. You can have a peace of mind while working in the office or public environments because you know your widescreen is protected with the 30+/- degree privacy viewing angle. Blue Light Reduction The monitor privacy film is designed to filter blue light (390nm~480 wavelength) that can cause eye strain & can disrupt sleeping patterns. The Choice of IT Pros Since 1985 Star Tech.com conducts thorough compatibility & performance testing on all our products to ensure we are meeting or exceeding industry standards & providing high-quality products to IT Professionals. Our local Star Tech.com Technical Advisors have broad product expertise & work directly with our Star Tech.com Engineers to provide support for our customers both pre and post-sales. The TAA compliant PRIVSCNMON27 is backed by a Star Tech.com 2-year warranty & free lifetime technical support.