What is Extraction rate?
Extraction rate (litres/day)
Water removed per day, measured at 30°C / 80% humidity in a lab.
Short answer
A 10L/day unit suits one damp room; whole-floor damp needs 20L/day or more.
Extraction rate when buying a dehumidifier
Water removed per day, measured at 30°C / 80% humidity in a lab.
Why it matters: Real homes are cooler and drier than the lab — expect 50–70% of the rated figure.
Look for: A 10L/day unit suits one damp room; whole-floor damp needs 20L/day or more.
Full Dehumidifier buying guide