Large windows in a public washroom is a great feature to let in an abundance of light. The problem with that is the office building across the street can look directly in and see you doing your business. It was a tough job with the windows being so big, but our qualified installer had no problem getting the film on those windows. A Frost film was installed to prevent seeing in or out of the windows, but it will let in all the light. Perfect solution in a public washroom.