Keep confidential information on your computer screen private with the Port Designs Privacy Filter 2D 13.3" 16:9 Screen Protector. Ideal for privacy when working in an office or during travel, the screen protector prevents anybody located laterally at more than a 30° angle from seeing what's on your screen.The anti-glare design lets you use your devices comfortably, whilst also protecting from scratches, dust and shocks.