Patent ID: 8842864

Claim:
A method of wax protection in a hearing instrument, the hearing instrument comprising an ITE-part adapted for being positioned in the ear canal of a user, the ITE-part comprising a housing comprising first and second openings adapted for facing towards the ear drum when said ITE-part is mounted in the ear canal, said first and second openings being adapted to allow first and second functional elements of the ITE-part to be in communication with the ear canal, the hearing instrument further comprising a wax filter adapted to fully or partially cover said first and second openings, and an ear canal locating part comprising one or more structural elements for controlling a position of a receiver in a cross section of the ear canal, the method comprising: providing that the wax filter comprises at least first and second distinctly different parts for covering respectively, said first and second openings; and providing that each of said first and second distinctly different parts of the wax filter are individually optimized with respect to wax protection, wherein one of said first and second functional elements is a vent, wherein the wax filter comprises a vent part adapted for partially covering a vent opening and adapted for limiting the effective vent cross section, wherein the vent part of the wax filter comprises a tongue formed blocking element, wherein the tongue formed blocking element partially covers the vent opening, wherein the size of the tongue formed blocking element is adapted to optimize the effective vent cross section.