Abstract: An ultraviolet (UV) sterilization system and a device for sterilizing a garment having shoulder, torso, and sleeve portions including a garment enclosure; a garment hanger; and at least three UV emitter sets, wherein the garment enclosure comprises a housing and a door that are affixed to each other to provide an interior cavity of the garment enclosure, wherein the housing further includes a plurality of housing walls that encapsulate the housing, and wherein each of the plurality of housing walls comprises a housing-wall inside surface located within the plurality of housing walls and a housing-wall outside surface located outside the plurality of housing walls.