The Karcher Window Vac provides superior cleaning performance. The Karcher WV1 Window Vac cleans windows 3 times faster, leaving them clean and streak-free. Use the 2-in-1 bottle to apply detergent and wipe, then easily vacuum away residual water from the surface. No dripping dirty water and no streaks. Ideal for cleaning windows, mirrors, showers - also excellent for removal of condensation from windows.