Panasonic DL-EH30SE-W Operation Instructions Manual page 17

Deodorization filter
(Once in every month)
If it's clogged by dust, deodorization effectiveness may be
adversely affected.
①Hold the dented part of deodorization filter net with hand
to take it out.
②Use tool such as dry toothbrush or wash with water to clean
the dust.
● After washing with water, dry it before using.
③Insert the filter at the original position according to the "Top
side" printed on the filter.
Top side
Dented part
Deodorization filter
17