[Dual-sided Protection] Anti blue light filter on both sides with frosted surfaces for minimal. ^^ [Reduced Harmful Blue Light] The 23.8 inch screen filter reduces harmful blue light and provides physical screen protection. ^^ [Effective Intimacy Protection] This computer eye protection filter blocks intimacy when viewed from the side over 30 degrees. ^^ [Ideal for Public Spaces] Suitable for open workspaces like airports, planes, trains, and coffee shops. ^^ [Multi-layered Protection] Anti blue light, anti dazzling, anti reflection and scratch protection for your screen.