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17. Care and maintenance
Diligent and routine care of your hearing aid and charger
contribute to outstanding performance and a long service
life. To ensure a long service life, Sonova AG provides a
minimum of a ve year service period after phase out of
the respective hearing aid , charger and essential
components..
Please use the following specications as a guideline.
Further information regarding product safety, see
chapter 23.2.
General information
Before using hair spray or applying cosmetics, you should
remove your hearing aid from your ear, because these
products may damage it.
Your hearing aids are resistant to water, sweat and dust
under the following conditions:
• 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.
Always make sure that the hearing aids and
charger are dry and clean before charging.
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