The washing sink in sterilization serves as a dedicated area for the cleaning and decontamination of instruments and equipment before the disinfection process through Washer Disinfectors. This sink is usually located in the decontamination area of the sterilization department also known as CSSD (Central Sterile Supply Department).

One, two, or three sinks can be manufactured, along with extras like cupboards or drawers, depending on the end user's needs, space availability, and sterilization volume.