3M PF400XXLB Privacy/Antiradiation Monitor Filter

The 3M PF400XXLB privacy computer filter fits both 19"-21in. CRT and 19"-20in. LCD desktop monitors. 3M privacy technology blacks out screen data from a side view, with no blurring or image distortion. Reduces ELF/VLF E-field radiation up to 99.9% and reduces static when properly grounded. Midnight black frame for black monitors. Backed by manufacturers lifetime warranty.