The Lenovo 14" Bright Screen Privacy Filter for X1 Carbon Gen9 from 3M offers world class privacy without substantial tradeoffs in brightness or security. On average, 25% brighter than the standard 3M black privacy filters. Proprietary nanolouvre technology enables 85% transmission of the device's brightness. The Lenovo 16" Bright Screen Privacy Filter for P16/T16 Gen1 from 3M also blocks 35% of harmful blue light.