Miele Blizzard CX1 SKCR3 Operating Instructions Manual page 104

 Release the fine dust container in the
direction of the arrow and remove it.
 Run a little water into the opening at
the top of the fine dust container.
 Gently shake the fine dust container
back and forth.
This will rinse out the dust.
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 Shake to empty the water out.
 Release the top so that the marking is
pointing to the  symbol.
 Carefully lift the fine dust filter up-
wards and out of the fine dust con-
tainer.