Commercial Window Films: For Offices and Retail Spaces
https://mill-wiki.win/index.php/Solar_Heat_and_UV:_How_Window_Film_Keeps_Your_Home_Cooler_and_Safer
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