The device for cleaning a hearing aid by contact with a liquid includes a cleaning cavity suitable for receiving the end piece of the hearing aid and that is provided, at the bottom of same, with an opening for discharging the liquid. The cleaning cavity is defined laterally by an inner skin surrounded by an outer skin, the outer skin including an injector for the liquid while the inner skin defines, at the base of same, an opening overhanging the bottom and allowing the liquid to pass into the cleaning cavity. The invention also concerns an assembly includes the cleaning device and a reloading unit, the reloading unit being suitable for filling a tank of the cleaning device.
