ReSound ONE RT988-DWC User Manual page 37

NOTE: Your earmould tubing may become stiff, brittle or discoloured over time. Contact your hearing care
professional regarding tube changes.
Changing the microphone filter
The two microphones on the back of your hearing aid are protected by a microphone filter. If you experience
sound deterioration or increased difficulty identifying where the sounds come from, changing the filters may help.
You will need a box of microphone filters. Contact your hearing
care professional.
The microphone filter tool has two functions: a removal tip to
collect the used filter, and a replacement tip with a new filter.
Removing the old microphone filter
1. Open the filter case and take out one of the tools. Each tool
has a small hook (removal tip) in one end and a new
microphone filter in the other.
Box of 8 microphone filter tools.
Cleaning and caring for your hearing aids 37