How we test dehumidifiers
Find out more about our expert lab testing of dehumidifiers.
We’ve tested a range of dehumidifiers to see whether their marketing claims stack up.
Overall score breakdown
Our dehumidifiers test includes:
Water removal
We measure water removal rates over 24 hours across a range of temperatures and humidity levels typical of New Zealand conditions. We use the average to produce a water removal score, giving slightly more weight to the most challenging (coldest) conditions and less weight to the least challenging conditions.
Low temperature performance
We use the water removal rate measured at 8°C and 90% relative humidity to issue a low temperature performance score.
Energy efficiency
We measure how much energy is used per unit of water removed to provide an energy efficiency score.
Ease of use
We assess tank emptying, layout and readability of controls, clarity of instructions, cleaning and how easy each dehumidifier is to move.
Other
We calculate daily running costs based on 8 hours’ use a day. We record how much noise each dehumidifier makes. And we make a note of each dehumidifier’s features and specifications.
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