Widex BEYOND B-F2 RIC User Instructions page 19

When not in your ears leave the battery compartment open to ventilate the
hearing aid.
For information on how to clean your ear-set, see the ear-set manual.
Do not use any kind of liquid or disinfectant to clean your hearing aid.
Clean and inspect your hearing aid every day after use to check that it is
not broken. If the hearing aid breaks while you are wearing it, leaving
small fragments in your ear canal, contact your doctor. Never try to take
out the fragments yourself.
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