Confidentiality Screen Filter | 16:9 Aspect Ratio | Matte or Glossy | 2-Year Warranty. The monitor privacy screen is easy to attach and remove. Simply attach the 21.5 inch privacy screen to your 16:9 aspect ratio display using the attachment strips or slide-mount tabs. This confidentiality screen filter is also reversible. The matte side provides you with glare reduction and the glossy side of the privacy screen will provide you with increased clarity. The privacy screen is also easy to clean when removed from your display. Protect Your Privacy. The privacy screen protector for desktop monitors is a great investment if you want to protect your privacy. It is a convenient and 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 screen is protected with the 30+/- degree privacy viewing angle.