A product photo of an innovative appropriate technology water purifier tumbler. It has a transparent outer body, showing dirty muddy water being pushed to the outer walls by centrifugal force, leaving clear water in the center. In the exact center, there is a vertical charcoal and bamboo filter tube. On top of the tumbler, there is a prominent hand-crank mechanical lever made of recycled plastic and wood. Studio lighting, clean white background, high detail, realistic texture, 8k resolution. Mehr sehen