anko EV-696-S222 Manual page 18

Wash the filters in warm mild soapy water, rinse in clean fresh cold water
and let completely dry.
DO NOT scrub the filters or place in a dishwasher.
DO NOT use a hair dryer to dry the filters.
Refit the inner filter (or replace with a new one) in the reverse method used
for disassembly and rotate fully clockwise to lock.
The dust canister can also be cleaned at the same.
IMPORTANT: When refitting the filter assembly back into the dust canister,
it must be fitted in the correct orientation.
To ensure this happens, there are three tabs on the edge of the filter
assembly which align with the three slots in the dust canister.
Ensure the location of the tabs align with the locations of the slots. Note, they
are not equally spaced so you will need to keep rotating until all tabs and
slots align properly.
NOTE: Incorrect fitment of this part will prevent the vacuum cleaner
from picking up the dust and debris, and you may damage the
components.
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