The main reason to build this building was to create an appropriate, covered and safe place for women to wash clothes and dishes. No other building has been identified by the same usage in the other regions of this city. The most significant reason to build this building was creating an appropriate, enclosed and safe place to wash the clothes and dishes by women.
This complex is divided into a management part of Rakhshooy Khane containing the yard, residential area and the main area for washing the clothes which is itself divided into four parts. This building of public utility is unique in the country which has been turned into the Zanjan anthropology museum, and visited by tourists and enthusiasts from 1998 to the present.