Clean the Head Band
If the head band pads become dirty, they can be wiped
clean with a dry cloth. If this is insufficient to clean the pads,
they may be cleaned with ethanol, but take care to prevent
any splashing onto the lens.
Clean the Control Box
Dirt and dust can be removed from the control box by
wiping it clean with a dry cloth. If this is insufficient, you can
use a moistened cloth, but make sure that it is well wrung
to minimise the risk of getting water into the control box.
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