The Aqua Head brush is designed for use on hard, durable, water-resistant floors. Do not use on carpets, rugs, walls, or windows. Only use when the water tank and cloth are attached to the brush. The cloth must be moistened before use. It is advised not to use cleaning agents in the water tank. Do not absorb any liquids. Turn off the device immediately if there is liquid in the dust container. A switch controls or stops the water flow.