To clean a hearing aid mould, you can use a soft-bristled brush or a toothbrush to gently remove any debris or wax buildup on the surface of the mould.
You can also use a cleaning solution specifically designed for cleaning hearing aid moulds, or a mixture of warm water and mild soap.
Be sure to dry the mould thoroughly before reinserting it into your hearing aid. It’s also recommended to clean the mould after each use.