Hearing Aid filter Oticon Prowax Minifit Our Ears Produce ear wax on a regular basis. It won’t let you more and the other less. The ear wax – also known as cerumen – Protects Our Ear Canal And Keeps The Skin. Unfortunately the but can also lead to clogging your hearing aids. A technical broken is up but not. As only, the hearing aid filter (also known as Cerume filter) replace on a regular basis, the flawless function your hearing aid to ensure.