13 window cleaners in a comparison test

Cleaning glass takes a considerable amount of time: after all, most (glass) surfaces need to be treated with leather, coated with water and then polished. Despite all the effort, however, a flawless shine is not always achieved ? it is usually streaks that spoil the work. In this case, modern window cleaners are recommended, with which glass (windows and other surfaces), tiles etc. can be cleaned easily ? and without streaks. We tested 13 models and found out how they handle in different situations, how much they can really clean the individual surfaces, how noisy they are during this process and much more.