Clean Clear / shampoo bottle

Clean Clear just adds two small parts to a normal shampoo bottle, which help people use up the liquid in it. When some liquid is taken out, the pressure inside decreases and air gets through the little hole on the neck of Clean Clear, which pushes the wipe to move down. Then the remains attached to the internal wall are taken to the bottom, and gathered in the depression. The wiper and the depression fit well so that the amount of liquid left can be reduced to the minimum.