The living room windows in the condo are three huge sliding glass doors. They are 8 feet tall and span nearly the width of the wall. Two of them can be opened at any one time. I like to slide the left and middle glass doors to the right making a huge open space connecting our lanai (a covered backyard porch area) and the living room. It feels as though I’m outside when I do this, but without the nuisance of the bugs.