The present disclosure relates to an oral cleansing device with illumination features. In one example, a diffuser for diffusing light is disclosed. The diffuser includes a first membrane configured to be positioned over a first light source, a second membrane coupled to the first membrane and configured to be positioned over a second light source； and a bridge coupling the first membrane to the second membrane, where the bridge extends from an edge of the first membrane to an edge of the second membrane in an indirect manner.
