How To Change A CeruShield

If you have a receiver-in-canal style hearing aid may have a wax filter called a CeruShield. It will need regular cleaning and replacement. Here is how to do it.

Changing a CeruShield

Your hearing aid is a receiver-in-canal style, and has a wax filter, called a CeruShield, at the end of the receiver which will require regular cleaning and replacement as required.

The CeruShield can block up from time to time, which can make the hearing aid sound softer, or work intermittently, or not work at all, so it’s important to check that it is clear to ensure your hearing aid continues to work optimally for you. The CeruShield is the small white filter located at the end of the receiver of your hearing aid.

In order to access the CeruShield, you will need to remove the dome at the end of the receiver.

cherushield image 1

To remove the dome, grasp the tip of the dome between your thumb and forefinger and pull it off the receiver. 

cerushield image 2CeruShields come in a black disk, and contain eight cerushields.

You will notice two openings in the disk, labelled ‘1’ and ‘2.’ You need to turn the top dial of the disc to access a new cerushield, which is located at opening 2. The disc itself is used to remove the existing CeruShield from your hearing aid receiver, located at opening 1 (also marked with the image of a rubbish bin). 

Some tips for handling the CeruShield disk:

  • Do not press the disk when trying to turn it (this makes it harder to turn) 
  • Place your fingers gently on the arrows or grooves of the disk and turn
  • Do not place your fingers on the openings of the disk to turn

To remove and replace the CeruShield in your hearing aid:

cerushield image 3

Turn the dial clockwise to reveal a new cerushield in opening 2.

cerushield image 4

Place the end of the hearing aid receiver into opening 1 and push down. You may feel or hear a light click. Remove, and you should see the old CeruShield sitting in opening 1.

cerushield image 5

Place the end of the hearing aid receiver into opening 2 and push down. You may feel or hear a light click. Remove, and you should see the new CeruShield sitting in the hearing aid receiver.

 To reattach the dome, pushing it back onto the end of the receiver until it is secure.