The Hot and Ambient RO Water Purifier is an innovative and technologically advanced product that offers a unique drinking experience to users. The product has been designed using the "DFSS Conceptual Engineering" approach, which prioritizes user needs. The product combines a water purification system with a hot water system in a single unit, providing a large-capacity hot water supply of 4.2L and an intelligent touch-frequency display faucet. The product size is compatible with typical under-the-kitchen installation spaces.