Kensington's privacy filter keeps the information on your screen safe from prying eyes by narrowing the viewing angle to ±30 degrees. At the same time, it reduces eye-straining blue light and helps protect users from long-term visual fatigue. The product features two surface options: an anti-glare matte side and a clear glossy side. Additionally, the matte side includes an antimicrobial coating. Top Features: Size / Aspect Ratio 23.8" Limits viewing angle to ±30° Reduces blue light by up to 30% ? helps prevent eye strain Dual-sided: matte and glossy surfaces Antimicrobial coating 2-year warranty