The secret lies in the new Window Cleaner WV 50 Plus vac?s innovative water vacuuming function, which makes the cleaning process easy. No more dirty water that drips down when cleaning surfaces. The WV 50 Plus hygienically cleans without leaving streaks on the surface. Offers very easy handling and flexibility thanks to the device?s battery operation. The spray bottle with wiper attachment, microfibre pad and detergent concentrate perfectly complements the device to ensure the highest standard of cleaning.