PaceBid 20-22 Inch Hanging Computer Blue Light Blocking Screen Protector, Anti-UV Eye Protection Filter Film for Diagonal 20，21.5, 22 Inch Monitor, Easy On/Off Removable Filter

• Compatible models: our filter is perfect for 20 22 inches. Filter size (W x H) width: 505 mm x 320 mm. Not suitable for touch screens. Contact us if you have any questions about dimensions. (Please note: In order not to affect normal indoor use, it is the same as a similar protective film. It appears blue in a sufficient light environment and can be observed in the sun or outdoors.)
• Bright blue light and UV Our product can block 90% blue light (380 nm 450 nm) and 98% UV (310 nm 380 nm) from digital screens, it can cause you insomnia, eye strain, headaches, dry eyes and blurred vision and bad sleep.
• Anti-eye strain and eye care. The protection can provide glare protection and low reflection for the screen, reduces screen reflection and reduces flickering of glare, resulting in a more comfortable viewing experience.
• Material: acrylic. It can effectively prevent the screen from forming dust and scratches. Perfect in the office/home for OL, gamers and programmers. Our protector is best against dust, fingerprints, scratches and other sediments from daily use. Cleans super easily with a paper towel and water.
• Packaging & easy installation 1 x anti-blue light filter, 1 x instruction manual (English language not ), 1 x microfibre cloth. No adhesives are required. Simply attach the filter to your screen so you can easily remove, clean and reattach it.

PaceBid Anti-Blue Light Screen Protector for 20-22 inch Computer FAQ Q: What is blue light? A: Blue light is light with a relatively high energy between 380nm-450nm. The blue light in this wavelength increases the amount of toxins in the macular area of the eyes, which seriously endanger the health of our fund. Q: What is UV? A: UV refers to the general term of radiation in the electromagnetic spectrum with a wavelength of 10 nm to 400 nm, people cannot see it. Excessive UV penetration into the body causes skin cancer. Q: Why do we need to use the Anti Blue Screen Protector? A: The protective film against blue light can greatly reduce the irritation of blue light to the eyes and prevent myopia. It also absorbs and converts the ultraviolet version to prevent skin dryness caused by ultraviolet reflection from causing skin spots and chloasma. Q: What should we do if we are not satisfied with the product? A: We can provide 90 days * back, our screen protector will allow you a 100% risk-free purchase (does not contain any human-related damage). If you have any questions or concerns after use, simply contact our friendly customer service team via Amazon.