Philips sonicare DiamondClean 9000 Series Manual page 49

ENGLISH
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Rinse the entire handle, especially the brush head connection,
at least once a week.
Caution: Do not push on the rubber seal at the top of the handle.
Gently clean around the rubber seal.
Cautions:
- Do not clean the brush head, travel cap, handle, charger or
travel case in the dishwasher.
-
Do not use isopropyl alcohol, vinegar, bleach, or any other
house hold cleaning products, to clean the handle as this may
cause discoloration.
- Unplug the charger before you clean it.
- Do not use essential oils to clean the brush heads as this can
cause damage.
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