Miele TKG 440 WP Operating Instructions Manual page 14

Warning and Safety instructions
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If the water is drained externally through the drain hose instead of
being collected in the condensed water container, make sure the
drain hose is securely attached if you hang it in a sink or basin to
avoid the hose slipping and the water causing damage.

Condensed water is not drinking water.
It can cause health problems in both people and animals if
consumed.
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Always keep the area around the tumble dryer free of dust and
fluff.
Dust drawn into the tumble dryer can cause blockages in the heat
exchanger over time.

The tumble dryer must not be hosed down.
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