Hkoenig SWRC130 Manuel D'utilisation page 29

H. Dry the dust box and filter
assembly and keep it dry to ensure its
service life;
I. Replace the primary filter and the
HEPA filter into the dust box;
Note:
1. Before installing the filters, please
ensure that the HEPA filter and the
primary filter are in dry state.
2. Do not expose the HEPA filter and
primary filter to the sun.