CeruShield Disk (8 individual filters)

The Cerushield disk comprises 8 individual filters to protect the hearing aid electronics from earwax and to allow you to hear well at all times. . The filter needs to be replaced from time to time.  The frequency depends on the amount of cerumen production in your ears.  As a rule, when you begin to hear less well with your hearing aids, it is recommended to immediately change the filters.