Meaco MeacoDry Arete One 20L Review: price, specs and verdict (2026)

In a living room, kitchen or hallway, set Smart Humidity mode to 50-55%. The unit switches itself off at that level and restarts when humidity creeps back up, so it does not hum all day. Going below about 45% makes the compressor work harder for little gain and leaves the air drier than most people like.

For laundry, use the dedicated mode. It runs at full power for six hours and then stops, which suits a full airer in a closed room. Spread the clothes out rather than bunching them, and keep the machine a metre or so away so air can circulate.

In a bedroom, night mode dims the display and drops the fan to its quietest setting. At 40dB that is a steady, low hum, so a light sleeper should try it for a night or two before relying on it.

In a garage, caravan or cold outbuilding, remember that every compressor dehumidifier loses efficiency as the temperature falls. Below roughly 10-15°C a desiccant model such as the Meaco DD8L will extract more water.

If the unit never reaches its target and runs flat out, the room is either larger than it can handle or moisture is arriving as fast as it is removed, from wet washing, cooking or an unvented bathroom. Fixing the source with an extractor fan or better ventilation helps more than any setting.

Empty the tank when the full-tank light comes on, or connect a drain hose to run it continuously. Wipe the intake grille now and then and change the HEPA filter about once a year.

Meaco is a British brand, and the Arete One is the range it sells as its quietest and most energy-efficient: a compressor dehumidifier with an H13 HEPA air purifier in the same body. Compared with the Arete Two it drops the Wi-Fi app and the third fan speed, which is how the price stays lower while the warranty stays at five years.

The headline figure is 20 litres a day, but that is measured under a hot, humid lab standard (30°C and 80% relative humidity). Retailer specifications put the same machine nearer 12 litres a day at 27°C and 60% humidity, which is much closer to a damp UK room. So read it as a 12-14 litre unit in everyday conditions, which is still the right size for most family homes.

The 4.8L tank loads from the front and has a handle, the castors are hidden in the base, and the controls are simple enough that nobody in the house needs instructions.

It suits families in a 3-4 bedroom house, anyone drying laundry indoors through the winter, and buyers who would rather pay once for a long warranty than save a little on a cheaper machine. Very light sleepers who want a bedroom unit, and anyone who wants Wi-Fi control, should look at other models.