Washing machine

This silver crystal unit (15) is configured so as to seal a water-soluble silver crystal (29) therein and to be attachable to a washing machine, and is provided with: a first opening (20) through which water is introduced into the silver crystal unit (15); and a second opening part (21) for discharging water in the silver crystal unit (15), and a water passing member (27) formed in a mesh shape is provided in the first opening part (20) and/or the second opening part (21). As a result, even silver crystals (29) having a small diameter can be prevented from leaking from the second opening. Consequently, the silver crystals (29) having a small particle diameter are easily dissolved in water, and a high assisting effect can be obtained even with a small amount of silver crystals (29). 本发明的银晶体单元(15)构成为将水溶性的银晶体(29)封入且可安装于洗衣机，其包括：第1开口部(20)，其向银晶体单元(15)内导入水；以及第2开口部(21)，其将银晶体单元(15)内的水排出，在第1开口部(20)和/或第2开口部(21)设有形成为网格形状的通水构件(27)。由此，即使是直径较小的银晶体(29)也能够抑制其自第2开口部泄漏。因此，粒径较小的银晶体(29)易于溶解于水，因此即使是少量的银晶体(29)也能获得较高的辅助作用。