Welcome to the store! 1. Anti-Blue Light Anti-UV: This computer blue screen protector filters out harmful blue light with wavelengths between 380-420nm. Advanced blue light blocking technology protects your eyes, sleep, and skin from the negative effects of overexposure to blue light. The screen protector also filters out 99% of harmful UV rays to help reduce eye strain. For broad HEV protection. 2. High Light Transmittance: Compatible with 22-inch (317x490mm) PC monitors. The Blu-ray Display Screen Protector is made of high light transmittance acrylic, effectively preventing screen dust and scratches. Perfect for the office, home, students, office workers, gamers, and programmers. 3. Reduce Eye Strain: Provides better sleep, blue light blocking for your eyes, and protection for your health. 4. Easy Installation: Simply remove the film on both sides of the computer screen blue light blocker after cleaning the screen. Hang the protector on the screen. No paste, no bubbles. It can also be removed at any time and used on other computers. 5. Multifunctional: Prevents eye strain, CVS, chronic eye damage, eye fatigue, soreness, and more serious eye-related diseases. Specifications: Item Type: Blue Light Screen Protector Product Material: Acrylic Applicable to: 22in (317x490mm) PC screen Filter wavelengths: 380-420nm Blue light (useful light is not filtered), UV 99% protection Package Includes: 1 x Screen Protector 2 x Anti-slip stickers 1 x Cleaning bag (including cleaning cloth x 1, wet wipes x 1) Your satisfaction is our top priority. We will provide you with the best service. If you encounter any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!