Building management is easy, and maintenance cost cuts down for the future. Exterior glass become more durable thanks to the protection against pollutants and organic matters. And grime or any oil-based dirt wash away to the ground by rainfall. (no need for detergents of sorts to cleanse the exterior).
So-called super-hydrophilicity (below 5 degrees) helps the mirrors or windows become almost fog-free, by the way of uniformly spreading water droplets across the surface. This offers car owners no need to dab on the rear-view mirrors or windshield in rainy days or in the winter. Drive safe...