Prevent visual eavesdropping by limiting the viewing angles of your computer monitor screenMonitor privacy screen features a universal design compatible with 19" 5:4 aspect ratio monitors. The anti-glare design provides visual comfort while reducing the adverse effects of blue light emitted from the display. Reversible design allows you to quickly adjust to different light conditions throughout the day.Prevent Visual EavesdroppingThis privacy filter is a convenient and cost-effective solution to protect confidential data from unwanted viewers. The privacy shield darkens your computer's screen from the side while providing a clear viewing angle of 60 degrees (+/- 30 degrees from center) to the user.Reversible FilterThe privacy screen protector is reversible, with a matte anti-glare side for environments prone to glare and a high-gloss side that helps retain color vibrancy. The matte side provides additional screen protection with a fingerprint and scratch resistant coating. The privacy shield has a light transmittance of 57.5% providing optimal screen brightness and enhanced levels of privacy.Hassle-free InstallationAffix the privacy screen shield using the provided residue-free transparent adhesive strips or the side mounting tabs. The cutout on the top corner of the privacy screen makes it easy to remove for sharing content with trusted audiences or switching between the matte and glossy finishes.Blue Light ReductionReduce eye strain and improve visual comfort with this blue light-reducing privacy shield. It blocks up to 51% of the blue light emitted from the display in the 380nm. - 480nm wavelength range. Digital eye strain can lead to symptoms like headaches, dry eyes, and blurred vision.The StarTech Advantage.