Litres a day, and where they actually go

The best dehumidifiers for 2026

A dehumidifier's headline figure — litres extracted per 24 hours — is measured by the manufacturer at 30 °C and 80% relative humidity, a warm and genuinely damp test room that most homes never reach. The same unit in a cool 18 °C bedroom removes noticeably less water than the box states, which is why two dehumidifiers with identical printed figures can feel very different once winter sets in. We compare rated extraction against that reference condition, tank size against how often it needs emptying, whether a continuous-drain hose fitting is included, the target-humidity control (a numeric setpoint versus a vague low/medium/high dial), and noise at the setting most owners actually run overnight.

The models we recommend

1. 

   Cecotec BigDry 2000

   300 ml/24h · 0.6 L tank · up to 20 m²

   A compact, low-power dehumidifier rated by Cecotec at 300 ml of water removed per 24 hours, for rooms up to 20 m². A removable 0.6 L tank, automatic shutoff when full, a carry handle and a minimum stated consumption of 23 W make it a light standby unit rather than a room-by-room appliance.

   Best for: A single small room, a wardrobe, a caravan or a car — somewhere a cheap standby unit against light condensation is enough, not a damp cellar or a family bathroom.

   7.1/10

   ≈ 37 €

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2. 

   COMFEE' Aqua Dry 10

   10 L/24h · 2.5 L tank · 36 dB

   A compressor dehumidifier rated by COMFEE' at 10 litres removed per 24 hours, with a 2.5 L tank, an adjustable target humidity between 35% and 85%, a stated 36 dB noise level, child lock and castors. COMFEE' uses R290 refrigerant and lists it for rooms of roughly 16-31 m² depending on the market.

   Best for: A bedroom, small basement or laundry room where a numeric humidity target and quiet overnight running matter more than the largest possible litres-per-day figure.

   7.9/10

   ≈ 84 €

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3. 

   Pro Breeze OmniDry 20L

   20 L/24h · 4 L tank · WiFi app control

   A compressor dehumidifier rated by Pro Breeze at 20 litres removed per 24 hours, with a 4 L tank, an included continuous-drain hose, WiFi app and Alexa/Google Home control, a dedicated laundry-drying mode, and an adjustable target humidity between 30% and 80%. Pro Breeze states a 36 dB noise level and lists it for rooms up to 30 m².

   Best for: A damp basement or utility room, or anyone who wants to dry laundry indoors and check on humidity from a phone rather than walking over to the unit.

   7.9/10

   ≈ 200 €

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4. 

   Bosch Dry 4000

   16 L/24h · 2.5 L tank · 3 automated modes

   A compressor dehumidifier from Bosch rated at 16 litres removed per 24 hours for rooms up to 33 m², with a half-transparent 2.5 L tank, three automated modes (Auto, Night, Laundry) called 'Easy Dry Select,' a stated 38 dB noise level, an integrated handle and castors. Bosch does not publish WiFi or app control for this model.

   Best for: Buyers who want a known appliance brand and simple mode-based control rather than a numeric humidity dial, and who don't need app control or continuous drainage.

   8.3/10

   ≈ 224 €

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