We are now fully convinced of the cleansing power of this device: We see it when a room was cleaned - But the even bigger surprise, what accumulates in the dust container. This can not be a conventional vacuum cleaner! possibly a device with a brush attachment, but this is a very demanding job. This makes this device alone. It also comes with furniture, which are hardly accessible otherwise. Also runs easily under the bed .... Regular wiping is now, except in the kitchen, much less frequently required.