Fiara Anti Blue Light Screen Filter/Protector | Fits 20"/21"/22" inch LCD/LED Monitor W490 x H317mm; HEV Blue Light Protection is PROVEN/VERIFIED to protect eye vision by INNOVATION PATENT AUSTRALIA Patented by IP Australia, Tested and Verified by Australian Independent Testing Authority, SGS Taiwan & complied with RoHS compliant standard. Block up to 99% harmful blue-light emitted by LED devices (LED TV & Desktop Monitor). Emphasizing in prevention of ACTUAL artificial harmful blue-light from 420nm ~ 460nm generated from most electronic LCD/LED monitors, Not like other general/similar products described in the wavelength of 380nm~480nm with average ONLY! There are less critical harmful blue-light source can be found in 380nm ~ 400nm. Prevent minor eye diseases, such as early development of Myopia, Presbyopia (Blurry vision), Computer Vision Syndrome (CVS), Dry Eye, Red eye syndrome, and Eye fatigue. Significantly reduce your risk to severe eye diseases that lead to total blindness - namely Cataract and Age-Related Macular Degeneration (AMD). Reduction in harmful blue-light exposure will enhance sleeping quality, prevention of skin diseases and increase work productivity. Maintain high-quality images. The majority of colour is well preserved for your visual sensation. The intensity of the images is also enhanced. Standard Shipping transit time to North America - via Australian Post PACK & TRACK International Post Service, 7~10 business days to nominated location without any inclusion of its destinations Custom Clearance/ Quarantine Inspection if required, Item is insured during transit for your peace of mind purchase.