Best Dehumidifiers — 12L/Day (2026)
9 dehumidifiers matching capacity “12L/Day”, hand-picked from UK Amazon listings.
Not sure which one to pick? Read our Best Dehumidifiers UK (2026) guide.
Looking for a dehumidifier that can tackle dampness effectively without taking up too much space? The 12L/Day Dehumidifiers category offers a selection of powerful appliances designed to remove moisture from smaller areas, ideal for bedrooms, bathrooms, conservatories, and even small offices. These units consistently target humidity levels, aiming for around 40-60% relative humidity – a comfortable range that helps prevent mould growth and protects your belongings. Each dehumidifier within this collection is engineered to handle a daily removal capacity of 12 litres, providing efficient performance in rooms up to approximately 20 square metres.
#1 Pick
Olsen & Smith 12L/Day Quiet Electric Dehumidifier on Wheels for Home, Damp & Mould Control- 12L/Day
£121.01
Pros
- 12L/day extraction copes well with larger or damp-prone rooms
- Castor wheels make it easy to move between floors
- Continuous drainage hose option for laundry rooms
Cons
- Bulkier footprint than compact bedroom dehumidifiers
#2 Pick
MeacoDry Arete Two 12L Smart Dehumidifier & HEPA H13 Air Purifier, Low Energy, Wi-Fi Meaco App- 12L/Day
£268.92
Pros
- Combines dehumidifying with HEPA H13 air purification in one unit
- Wi-Fi and Meaco app allow remote scheduling and monitoring
- 5-year warranty reflects Meaco build quality
Cons
- Premium price well above basic electric dehumidifiers
#3 Pick
Pro Breeze 12L/Day Dehumidifier with Automatic Humidity Sensor & Display, Sleep Mode, 24-Hour Timer- 12L/Day
£154.29
Pros
- Which? Best Buy Award winner for damp control
- Automatic humidity sensor keeps rooms at a set target level
- Large tank and continuous drainage option for extended runs
Cons
- Larger footprint than compact bedroom-only models
#4 Pick
Pro Breeze 12L Compressor Dehumidifier with 2L Water Tank, Laundry Drying & Automatic Humidity Sensor- 12L/Day
£134.45
Pros
- Compressor technology extracts moisture efficiently in cooler rooms
- Dedicated laundry drying mode speeds up indoor drying
- 24-hour timer and automatic humidity sensor for hands-off use
Cons
- 2L tank is smaller than some rival 12L/day compressor models
#5 Pick
Devola 12L/day Dehumidifier, Energy Efficient with 2.9L Tank, Dual Filtration, Timer & Laundry Drying Mode- 12L/Day
£149.90
Pros
- 12L/day extraction with 190m³/hr airflow for faster drying
- Dual filtration and low running cost of under 5p per hour
- Laundry drying mode and continuous drainage option
Cons
- Premium price compared to basic compressor models
#6 Pick
AirEase 12L/Day Dehumidifier for Home, 36dB Ultra Quiet Dehumidifiers for Bedroom, 2.5L Large Tank with Drain Hose, Dual 24H Timer & Smart Humidity Control- 12L/Day
£129.99
Pros
- 36dB ultra-quiet operation suits bedrooms overnight
- Dual 24-hour timer and smart humidity control automate operation
- Drain hose option allows continuous unattended use
Cons
- 2.5L tank needs regular emptying without the drain hose fitted
#7 Pick
MeacoDry Arete® One 12L Warm Pebble Dual Dehumidifier & HEPA Air Purifier for Smaller Homes or Flats- 12L/Day
£174.96
Pros
- Combined dehumidifier and HEPA air purifier in one unit
- Ultra-quiet 35-38dB operation suits bedrooms overnight
- Five-year warranty is unmatched among domestic dehumidifiers
Cons
- Premium price versus basic compact dehumidifiers
#8 Pick
MONHOUSE 12L/Day Digital Dehumidifier with Sleep Mode, 24hr Timer for Home, Bedroom, Basement & Garage- 12L/Day
£134.83
Pros
- 12L/day digital unit with three humidity-controlled modes
- Sleep mode keeps noise down for overnight bedroom use
- 24-hour timer and auto-defrost for colder rooms
Cons
- Larger 2L tank than compact travel dehumidifiers
#9 Pick
Igenix IG9813 12L/Day Dehumidifier for Mould Removal & Clothes Drying, Home, Kitchen, Bedroom, Caravan, Office or Bathroom- 12L/Day
£99.99
Pros
- 12L/day extraction suits rooms up to 15m² with persistent damp
- 4 dehumidifying modes plus a dedicated laundry-drying setting
- 24-hour timer and sleep mode for hands-off overnight use
Cons
- Fewer reviews so far than the longest-established rival brands
FAQ
What size room is a 12L/Day dehumidifier suitable for?+
A 12L/Day model is generally best suited for smaller spaces, typically around 15-20 square meters. Larger rooms will require higher capacity units to achieve the desired humidity reduction effectively.
How long does it take a 12L/Day dehumidifier to start working?+
Most 12L/Day dehumidifiers begin drawing in moisture within 30-60 minutes of being switched on. Factors like room temperature and initial humidity levels can slightly impact this timeframe.
What kind of noise do these dehumidifiers make?+
Dehumidifiers vary, but most models operate at a relatively quiet level – generally between 45-55 decibels. Look for units with 'Quiet Mode' features for even quieter operation if available.
Do I need to clean the water tank regularly?+
Yes, regular cleaning is crucial. Empty and rinse the water tank every 1-2 days, or when it reaches its maximum capacity (around 3-4 litres), to prevent bacterial growth and maintain optimal performance.
Can a 12L/Day dehumidifier be used in a garage?+
While possible, a 12L/Day unit may struggle in a damp garage. Consider a larger capacity model if your garage is particularly humid or frequently used.
What type of filters do these dehumidifiers use?+
Most 12L/Day units utilise washable air filters to trap dust and allergens, improving air quality alongside humidity reduction. Check the manufacturer's specifications for details on filter replacement frequency.
Are there any settings I can adjust on a 12L/Day dehumidifier?+
Many models offer adjustable speed settings (low, medium, high) to tailor performance based on your needs and room size. Some also feature auto modes that automatically adjust the fan speed based on humidity levels.
How does the energy efficiency of a 12L/Day dehumidifier compare?+
Energy-efficient models utilise inverter technology for quieter operation and reduced power consumption. Look for units with an A or B energy rating to minimise running costs.
What is the typical lifespan of a 12L/Day dehumidifier?+
With proper maintenance, a good quality 12L/Day dehumidifier can typically last between 5-10 years. Regular cleaning and filter replacement are key to extending its operational life.
What happens if the dehumidifier stops working?+
Refer to the manufacturer's warranty information for details on repair or replacement options under warranty conditions. Amazon’s standard returns policy may also apply, depending on the circumstances.