Hkoenig up690 Manuel D'instructions page 11

HOW TO MAINTAIN THE FILTER:
1. Press the battery locker to
unattached the battery from
dust cup
3. Take out the filter case,
then take out the filter
5. Please dry the HEPA filter
and filter case completely
before assemble back
7. put the filter case back to
the dust cup
2. Open the dust cup as below
showed
4. wash the filter case and
HEPA filter
6. After drying, assemble the
filter to the case
8. assemble the dust cover
into the dust cup as below
showed