The Building Maintenance Unit (BMU) is a special kind of elevators used specially in performing maintenance for high rise buildings and for building front glass cleaning .

Comparing it to any other scissors crane or boom lifts , the BMU can go up to 50 store high and even more .

Its very easy to use and very safe as well , it comes with wind blocker in order to avoid the shacking and the movements in windy days and high floors .

The BMU can also be provided with a power failed backup device to provide a backup power supply in case of power failed or a shutdown .

BMU can be designed and made specially in order to disassembled and transferred to another location or to be fixed in one place permanently .