Using a micro fibre clothe, vacuum suction force and window cleaning solution your robot window cleaner will help maintain your windows in a clean state.
Robot window cleaners adhere to the window with vacuum suction force. They will not randomly fall off, some models like the HOBOT 2S has an incredible 6.5kg suction force.
Once placed on the window, the robot will work its way automatically to the top of the window frame and then measure the width of the window before starting its cleaning pattern.
The robot is mimicking applied pressure you would use when normally cleaning assisted by solution and a micro fibre clothe.
The secret to robot window cleaning is frequent pad changes and regular use so you don’t get a large build up of dust, dirt and grime on the glass. Similar theory to any home robot.