Hearing aid incorporates a preferably changeable filter unit which prevents entry of moisture and/or dirt, in particular, cerumen, and includes a filter element constituted as a membrane and/or a sieve

摘要

The hearing aid incorporates a preferably changeable filter unit (60) which prevents entry of moisture and/or dirt, in particular, cerumen, and includes a filter element constituted as a membrane and/or a sieve. This element is inclined to a plane which is defined by the direction of the mean sound radiation or by the direction of the sound propagation channel itself.