Guide · Checked 18 October 2026
Best 12L dehumidifier in 2026
12 litres a day is right for most flats and small houses. Go bigger only for a large or very damp home.
The best 12L dehumidifier for most homes is a quiet compressor model with a humidity sensor and a laundry mode, such as the Pro Breeze 12L or the MeacoDry ABC 12L. They use about 140 to 200W, which costs roughly 4p to 5p an hour at the Ofgem price cap of 26.32p per kWh. If you have a large house, a cellar or serious damp, step up to a 30L model. These were selling in large numbers on Amazon UK on 18 October 2026.
We have not tested these products. This guide is based on the manufacturers' Amazon UK listings and buyer demand, checked on 18 October 2026. We do not show prices because they change constantly. As an Amazon Associate I earn from qualifying purchases. How we choose.
Is a 12L dehumidifier big enough?
- 12 litres a day is the extraction rate in test conditions (warm, very humid air). In a normal UK home it will pull out less, which is fine.
- A 12L dehumidifier suits a flat, a one to three bedroom house, or one problem room such as a bedroom with condensation.
- Choose 20L or more for a four-bedroom house, a home with lots of washing dried indoors every day, or obvious damp patches and mould.
- In a cold garage or conservatory, a desiccant dehumidifier works better than a compressor one. All the picks below are compressor models for heated homes.
What to look for
- A humidity sensor and auto mode, so it switches off when the room reaches the level you set (around 50% is a good target).
- A laundry mode for drying washing indoors.
- Tank size and continuous drainage. A bigger tank means emptying it less often; a drain hose lets it run without emptying.
- Noise. Under about 40dB is quiet enough for a bedroom on its low setting.
- Power. Most 12L compressor dehumidifiers use 140 to 200W. The listing's technical details show it.
12L dehumidifiers compared
| Dehumidifier | Power | Running cost per hour | Tank | Worth knowing |
|---|---|---|---|---|
| Pro Breeze OmniDry 12L | 200W | About 5p | See listing | Laundry mode, humidity display, timer |
| Pro Breeze 12L (classic) | 200W | About 5p | 1.8L, drain hose | Under 38dB; Which? Best Buy 2025 (per listing) |
| Pro Breeze 12L Compressor (2L tank) | 187W | About 5p | 2L | Laundry mode, humidity sensor |
| MeacoDry ABC 12L | 160W | About 4p | 2.6L | 35dB; simple controls |
| MeacoDry Arete One 12L | 136W | About 4p | See listing | Also a HEPA air purifier |
| VonHaus 12L | 200W | About 5p | 2L | Auto, laundry and sleep modes |
| Pro Breeze 30L Smart | About 460W | About 12p | 4L, drain hose | App and Wi-Fi; for large homes |
Power from each listing's technical details on 18 October 2026. Running costs worked out by us at the Ofgem price cap of 26.32p per kWh (1 October to 31 December 2026, average for Direct Debit), at full power. Compressors cycle on and off, so real costs are usually lower.
Best 12L dehumidifier: the picks
Best overall
Pro Breeze OmniDry 12L
Removes up to 12 litres a day with a laundry mode, a humidity display and a 24-hour timer, at 200W. It was one of the best-selling dehumidifiers on Amazon UK when we checked, at over three thousand a month.
Read our full guide to the Pro Breeze OmniDry 12L →
Paid link · opens Amazon.co.uk
Quietest Pro Breeze
Pro Breeze 12L (classic)
Under 38dB, an automatic humidity sensor, a digital display, a 24-hour timer and a 1.8L tank with a hose for continuous drainage. The listing says it was a Which? Best Buy in 2025.
Paid link · opens Amazon.co.uk
Best Meaco
MeacoDry ABC 12L
A quiet (35dB) 12L compressor dehumidifier for a flat or smaller house, with a display showing room humidity, a 2.6L tank and a low 160W draw. Thousands of buyer ratings on Amazon UK.
Paid link · opens Amazon.co.uk
Best 2-in-1
MeacoDry Arete One 12L
A 12L dehumidifier and a HEPA air purifier in one, at about 136W. Good for a bedroom where you want drier air and fewer allergens without two machines.
Paid link · opens Amazon.co.uk
Best for a bigger tank on a budget
Pro Breeze 12L Compressor with 2L tank
A newer Pro Breeze with a 2L tank, laundry mode and humidity sensor. It was selling over a thousand a month on Amazon UK when we checked.
Paid link · opens Amazon.co.uk
Best simple alternative
VonHaus 12L
Auto, laundry and sleep modes, a three-colour humidity display and a 2L tank, at 200W.
Paid link · opens Amazon.co.uk
When 12L is not enough
Pro Breeze 30L Smart
For a large home, a cellar or serious damp: 30 litres a day, a 4L tank with continuous drainage, a child lock and app control with Wi-Fi scheduling. It uses more power, at about 460W.
Paid link · opens Amazon.co.uk
Where to put a dehumidifier
In the room with the problem: the bedroom with condensation on the windows, or the room where you dry washing.
Close the door so it is not trying to dry the whole house, and leave a gap around the machine for airflow.
For drying laundry, see our guide to the best dehumidifier for drying clothes, which compares running costs per load.
Before Black Friday
Dehumidifiers sell most from October to February, so prices do not always drop much around Black Friday (27 November 2026). If you have damp now, buy now.
Questions people ask
What is the best 12L dehumidifier in the UK?
The Pro Breeze OmniDry 12L is the best seller, with a laundry mode and humidity display. The MeacoDry ABC 12L is a quieter, lower-power alternative.
Is a 12L dehumidifier big enough for a house?
For a flat or a one to three bedroom house, yes. For a larger house or serious damp, choose 20L or more, such as the Pro Breeze 30L.
Meaco or Pro Breeze?
Both are popular UK brands. Meaco's models are quieter and use less power; Pro Breeze's sell in larger numbers and often cost less. Both make compressor models with humidity sensors and laundry modes.
How much does a 12L dehumidifier cost to run?
Most use 140 to 200W, so about 4p to 5p an hour at the Ofgem price cap of 26.32p per kWh (October to December 2026). They cycle on and off, so usually less.
What humidity should I set my dehumidifier to?
Around 50% is a good target for most homes. Below 40% can feel dry; above 60% encourages condensation and mould.
Do I need a 30L dehumidifier?
Only for large homes, cellars or very damp properties. A 30L model removes more water but uses more than twice the power of a 12L one.
Related guides
Is the Pro Breeze OmniDry 12L worth it?
Dry air, dry washing, less mould.
Read the guide →
Is the Lakeland Dry:Soon 3-Tier worth it?
Two loads of washing, dry without a tumble dryer.
Read the guide →
Is the Levoit Core 300S worth it?
Cleaner bedroom air for allergy season and pets.
Read the guide →Best dehumidifier for drying clothes
Look for a laundry mode, the right capacity, and a room with the door shut.
Read the guide →Heated airer vs dehumidifier vs tumble dryer: running costs
The cheapest per hour is not always the cheapest per load.
Read the guide →Best heated clothes airer
A cover makes more difference than extra watts. So does putting it in a small room.
Read the guide →Levoit Core 300S vs 400S
Match the purifier to the room size. A bigger model on a low setting is quieter than a small one flat out.
Read the guide →