Commercial Window Films: For Offices and Retail Spaces
https://tiny-wiki.win/index.php/Glare_at_Work%3F_Window_Film_to_Boost_Productivity_and_Comfort
Window film is one of those practical options that quietly improves a workspace without shouting about it. It sits on the inside of glass, a thin layer that can alter how heat moves, how much light gets through, and how private a space feels