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13. Care and maintenance
Diligent and routine care of your hearing aid contributes
to outstanding performance and a long service life. To
ensure a long service life, Sonova AG provides a minimum
of a five year service period after phase out of the
respective hearing aid.
Please use the following specifications as a guideline.
Further information regarding product safety, see
chapter 19.2.
General information
Before using hair spray or applying cosmetics, you should
remove your hearing aid from your ear, because these
products may damage it.
When you are not using your hearing aid, leave the
battery door open so that any moisture can evaporate.
Make sure that you always completely dry your hearing
aid after use. Store the hearing aid in a safe, dry and
clean place.
Your hearing aids are resistant to water, sweat and dust
under the following conditions:
• The battery door is fully closed. Ensure that no foreign
object such as hair is caught in the battery door when it
is closed.
• After exposure to water, sweat or dust, the hearing aid
is cleaned and dried.
• The hearing aid is used and maintained as described in
this user guide.
Use of your hearing aid around water can restrict
air flow to the batteries causing it to stop working.
Should your hearing aid stop working after coming
into contact with water – refer to the trouble-
shooting steps in chapter 18.
