Wipe the tubing and dome using a wet wipe.
Ensure it is dry afterwards.
Separate the tubing from the hearing aid by unscrewing (clockwise) the tubing away from the hearing aid.
You do not need to disconnect the dome from the tubing.
Feed the cleaning rod through the hole in the top of the tubing until it comes out of the dome.
You may need to move the end bit of plastic out of the way to allow the cleaning rod to come out the other end.
Screw the tubing and dome back into the hearing aid until you are unable to screw it any further.
Wipe down the cleaning rod as this can be reused.
Separate the tubing from the hearing aid by unscrewing (clockwise) the tubing away from the hearing aid.
You can discard the old tubing.
Screw the new tubing into the hearing aid.
Ensure that the colour of the writing on the tubing matches with the colour indicator in the battery compartment.
Red - right
Blue - left
Your hearing aid should now look like this.
This should be repeated at least every 6 months.