Cleaning windows at Cologne Central Station has always been a tricky task. Now, for the first time, a cleaning technique called hyCLEANER® black SOLAR was used, which was originally developed for cleaning solar panels but also proved its worth on the famous Cologne glass roof. An operator from a specialist company controlled the cleaning system, which is equipped with brush rollers.

equipped device over lofty heights.

Source: DB WELT Region West - Issue 9 - 2017