SDC is a diaper changing station that uses water for sterilization during the heating process. When closed, it undergoes sterilization and rinsing. Before the water turns to steam, it initially forms hot water to rinse the surface. Dirty water flows down through connected pipes. Once the internal temperature sensor hits 90°C, it gradually increases, turning into steam for sterilization and drying. For safety, the station remains closed until sterilization completes. Additionally, there's a side space to temporarily store dirty diapers, preventing contact with the baby's skin again.