3M™ Privacy Filter for 21.5 in Widescreen Monitor, PF215W9B

3M™ Privacy Filters provide world-class "black out" privacy from side views outside the 60-degree viewing angle, while creating an excellent viewing experience from straight on views. Reversible between a glossy side and a glare-reducing matte side that helps reduce reflections and hide fingerprints, so you can enjoy pristine image clarity.