142 EN MEDUVENT Standard
WM 67851 01/2021
12 Maintenance
1. Push the hygiene filter into the filter compartment until the
hygiene filter audibly clicks into place and is flush with the
device.
2. Perform a function check (see “5 Function check”, page 45).
3. Reset the filter counter during the function check.
Result The hygiene filter has been inserted.
12.5 Replacing the rechargeable battery
You as the operator can replace the rechargeable battery yourself.
12.5.1 Removing the rechargeable battery
Requirements • The device has been disconnected from the power supply.
• The device has been removed from the portable unit.
Failure of therapy resulting from operation of device without
rechargeable battery!
The device is not intended for operation without the rechargeable
battery. A missing, discharged or defective rechargeable battery
will prevent uninterrupted operation of the device in the event of
failure of the external power supply. This can cause serious or life-
threatening injury to the patient.
Always operate the device with the battery charged.
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