Best Bathroom Dehumidifiers UK
Bathrooms are the dampest room in most flats: a single shower fills the air with steam that settles on cold tiles, sealant and ceilings, where mould loves to grow. The first line of defence is always ventilation — an extractor fan or open window — but a portable dehumidifier can clear the lingering damp that ventilation leaves behind.
Safety matters here. Never place an electric dehumidifier where it could get splashed or be near water while in use. The practical approach is to run one after showers, with the door open, positioned outside the splash zone.
QUICK ANSWER
For a bathroom, an extractor fan is the first line against steam; a portable dehumidifier run after showers (with the door open, away from water) clears the lingering damp. A compact or desiccant unit suits most bathrooms. Never use an electric dehumidifier near water or while showering.
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Our top pick: Pro Breeze 500ml Mini Dehumidifier — best for a small bathroom, run between uses
Who this guide is for
Anyone with a steamy, mould-prone bathroom in a flat who wants to cut the damp that settles after showers.
Our picks at a glance
| Pick | Best for |
|---|---|
| Pro Breeze 500ml Mini Dehumidifier See details ↓ |
A small bathroom, run between uses |
| EcoAir DD1 Classic MK6 (Desiccant) See details ↓ |
A cold, north-facing or unheated bathroom |
| Pro Breeze 12L Compressor Dehumidifier See details ↓ |
A larger bathroom or drying the whole flat |
How we chose
We focused on compact units that suit a small, often windowless bathroom: safe placement away from splash zones, quiet running, and whether a mini or passive unit is enough or a compressor model is needed. We describe published specifications and manufacturer information rather than quoting prices or star ratings, which change — check the current figures on Amazon before buying.
Our picks in detail
BEST COMPACT — Pro Breeze 500ml Mini Dehumidifier
Best for: A small bathroom, run between uses
A tiny, quiet unit you can run after a shower to pull the lingering moisture back out of the air. Small enough to tuck out of the way (well clear of water).
Pros: Small, quiet, cheap.
Cons: Low capacity; for light damp only.
BEST FOR A COLD BATHROOM — EcoAir DD1 Classic MK6 (Desiccant)
Best for: A cold, north-facing or unheated bathroom
A desiccant keeps working in a cold bathroom where a compressor struggles, and gently warms the air — useful in winter.
Pros: Works in the cold, quiet, adds a little warmth.
Cons: Higher running cost; still keep it clear of water.
BEST FOR A BIGGER BATHROOM — Pro Breeze 12L Compressor Dehumidifier
Best for: A larger bathroom or drying the whole flat
More extraction for a bigger bathroom, best run just outside the door with it open, or in the flat generally after showers.
Pros: High capacity, laundry mode, 2L tank.
Cons: Bulkier than a mini unit; keep it well away from water.
Prices and availability on Amazon are accurate as of the date of publication and are subject to change.
| Room temperature | Compressor | Desiccant |
|---|---|---|
| Above 15°C — heated living room or bedroom | Recommended. Most efficient here, and at its best from 16°C upwards | Works well, but draws more power for the same job |
| 10–15°C — cool bedroom, hallway, spare room | Only a large 20–25L model really keeps up | Recommended. Performance does not fall away |
| Below 10°C — garage, loft, unheated conservatory | Not effective | Recommended. Unaffected by the cold |
| Power draw | 150–260W | Around 330W at 20°C and 60% humidity |
| Warmth added to the room | Discharge air about 2°C warmer | Discharge air about 10–12°C warmer, which can be welcome in winter |
If the room you want to dry is one you actually heat, a compressor model will cost less to run. If it is a cold room, a compressor will struggle however large it is.
Temperature thresholds, power draw and discharge temperatures: Meaco technical guidance.
How to choose
- Safety first: never use an electric dehumidifier in the splash zone or while showering.
- Ventilate first: an extractor fan or open window removes most steam — see our extractor fan guide.
- Run after showers: with the door open, to clear the damp that lingers.
- Cold bathrooms: choose a desiccant.
- Wipe down: a quick wipe of tiles and screen after showering removes surface water fast.
- Treat sealant mould separately and keep humidity down to stop it returning.
Common questions
Can I use a dehumidifier in the bathroom?
Yes, with care. Do not place an electric dehumidifier where it could be splashed or near water while running. Run it after showers with the door open, positioned well clear of the bath, basin and shower.
Dehumidifier or extractor fan for a bathroom?
An extractor fan is the first line — it removes steam at source during and after a shower. A portable dehumidifier is a useful addition to clear the damp that lingers, especially in a bathroom without a good fan.
How do I stop mould in a flat bathroom?
Ventilate during and after showers, wipe down wet surfaces, keep humidity down with a fan or dehumidifier, and treat any existing mould on sealant and grout. Fixing the moisture is what stops it coming back.
Our recommendation
Start with good ventilation, then add a compact dehumidifier like the Pro Breeze 500ml Mini to clear lingering damp after showers. For a cold bathroom, the EcoAir DD1 desiccant is the better choice — always kept safely clear of water.
Related guides
- Condensation Risk Calculator — free tool
- Best Bathroom Extractor Fans for Flats
- How to Prevent Mould in a Flat
- Best Dehumidifiers for Mould
- Best Window Vacuums for Condensation
- Damp & Mould hub
