Yeongwoo Kim telah mencipta tandas lelaki yang lebih mesra alam. Tandas tersebut dikenali sebagai 'Eco Urinal' telah dicipta oleh Yeongwoo Kim untuk menjimatkan air. Pada kebiasaanya, dua kali air perlu digunakan untuk mencuci tandas dan juga tangan. Kaedah yang ditonjolkan oleh Yeongwoo Kim dimana hanya satu kali sahaja air digunakan.
"To save water, Eco Urinal is designed to use the water that was used for washing hands to flush the urine. By this process, we don’t have to use water twice after using the urinal. Moreover, it reduces the establishment expenses by optimizing the materials. Upper space of this urinal is made with glass, and it helps to secure a clear view for users. It also promotes people to keep their sanitation because people need to wash their hands to flush the urine after use."
