A pharmaceutical multi-effect distilled water generator is a system designed to produce Water for Injection (WFI) in compliance with pharmacopeial standards such as USP, EP, and GMP. It uses purified water as feed water and generates WFI through multiple stages of evaporation and condensation. This process ensures the effective removal of microorganisms, endotoxins, and impurities, making the water suitable for injectable drug production and critical cleaning processes.