Feature: 1. Filter Blue Light: 22 Inch computer screen protector can protect your eyes by blocking 30% of blue light, blocking harmful blue light between 380‑495nm. 2. Multi Purpose: Anti blue light filter can protect intimacy, anti dazzling, anti reflection, UV and blue light reduction, also protect the display from scratches. 3. Intimacy Protection: Computer eye protection filter film effectively protects intimacy in side view beyond the 60 degree viewing angle, with strong practicality. 4. Double Sided Use: Anti blue light screen protector can be used on both sides, frosted surfaces anti dazzlingcoating design, glossy screen is clearer. 5. Wide Application: 22 Inch computer screen filter is ideal for open workspaces such as airports, planes, trains, coffee shops and other public places. How to Use: Take out the product and use it Specification: Item Type: 22 Inch Computer Screen Filter Product Material: PET Product Size: 22 Inches Aspect Ratio: 16:10 (Approx.475 x 297mm / 18.7 x 11.6in) Package List: 1 x 22 Inch Computer Screen Filter 1 x Dust Free Cloth 3 x Plastic Tower Buckle (1 Long and 2 Short) 1 x Double Sided Tape 1 x User Manual