Buying Guide
Best Small Dehumidifiers for Bedrooms UK 2026
Updated June 2026
Searching for a small dehumidifier for your bedroom? You'll find two very different types on Amazon UK: mini Peltier dehumidifiers (£30–£60, extract 300–500ml/day) and compact compressor dehumidifiers (£80–£200, extract 6–12 litres/day). The mini ones look appealing but have serious limitations. The compact compressors actually fix the problem. This guide covers both honestly, so you buy the right one for your situation.
Quick answer
Humidity above 65%: you need a compact compressor like the MeacoDry Arete One 6L (£160–£200). Humidity 55–65%: a mini Peltier like the NETTA 500ml (£35) may be enough. Don't know your humidity? Buy a £10 hygrometer first.
Check your humidity →Mini Peltier vs compact compressor: the honest truth
| Feature | Mini Peltier (£30–£60) | Compact Compressor (£80–£200) |
|---|---|---|
| Daily extraction | 300–500ml | 6,000–12,000ml |
| Effective room size | Wardrobes, small cupboards | Full bedrooms, living rooms |
| Running cost | 1–2p/hour | 4–7p/hour |
| Noise | Very quiet (30–35dB) | Low hum (35–45dB) |
| Weight | 1–2kg | 8–14kg |
| Will it fix a damp bedroom? | Unlikely on its own | Yes |
Mini dehumidifiers are not useless — they work well in wardrobes, cupboards, and mildly humid small spaces. But if your bedroom has actual damp or condensation, only a compressor will fix it.
The top 5 small bedroom dehumidifiers
NETTA 500ml Mini Portable Dehumidifier
£30–£45
★ 4.3 / 5The best-selling mini dehumidifier on Amazon UK. Peltier technology means it's whisper quiet and ultra-compact — about the size of a water bottle. Extracts up to 300ml per day in ideal conditions. Auto shut-off when the 500ml tank is full. Perfect on a bedside table or inside a wardrobe. But let's be honest: if your bedroom has visible condensation or mould, this won't be enough on its own.
Pros
- Ultra-quiet (30–35dB)
- Very compact (water-bottle sized)
- Cheap to run (~1.5p/hour)
- Auto shut-off when full
- LED indicator
- Lightweight (1.2kg)
Cons
- ✕Only ~300ml/day extraction
- ✕Won't fix serious damp
- ✕500ml tank needs daily emptying
- ✕Less effective below 15°C
Best for: Mildly humid bedrooms (55–65% RH), wardrobes, bedside tables, caravans.
Check Price on Amazon UK →Senelux 500ml Portable Mini Dehumidifier
£25–£35
★ 4.2 / 5A slightly cheaper alternative to the NETTA with similar specs. Compact, quiet, and effective for small enclosed spaces. Reviews praise its simplicity and reliability — there's not much to go wrong.
Pros
- Cheapest mini dehumidifier
- Simple, one-button operation
- Quiet
- Compact
- Auto shut-off
Cons
- ✕Same 300ml/day limitation
- ✕Basic build quality
- ✕No extras
Best for: Absolute budget buyers who want basic moisture control in a small space.
Check Price on Amazon UK →AROEVE Compact Dehumidifier with 7-Colour LED
£35–£50
★ 4.3 / 5Stands out from generic minis with its 7-colour LED mood light — doubles as a bedroom night light. Slightly higher capacity than basic minis. USB-C charging option and ultra-quiet operation make it bedroom-friendly.
Pros
- 7-colour LED night light
- USB-C charging
- Quiet
- Compact
- Modern design
Cons
- ✕Still Peltier with limited extraction
- ✕LED may bother light sleepers
Best for: Bedrooms where you want a dehumidifier and night light in one device.
Check Price on Amazon UK →MeacoDry Arete One 6L Dehumidifier & Air Purifier
£160–£200
★ 4.5 / 5This is what you actually need if your bedroom has a real damp problem. The Arete One 6L is the smallest proper compressor dehumidifier from the UK's most trusted brand. It extracts 6 litres per day — 20 times more than any mini. Built-in H13 HEPA air purifier captures mould spores while dehumidifying. Ultra-quiet 32dB night mode. Smart, laundry and night modes. This is the one we genuinely recommend for damp bedrooms.
Pros
- 20× more extraction than minis
- HEPA air purifier built-in
- 32dB ultra-quiet night mode
- Smart, laundry and night modes
- UK's most trusted dehumidifier brand
- Compact for a compressor
Cons
- ✕Much more expensive than minis
- ✕Heavier (8kg)
- ✕Needs emptying or continuous drainage
Best for: Any bedroom with humidity consistently above 65%, visible condensation, or mould.
Check Price on Amazon UK →Devola 12L Low Energy Dehumidifier
£85–£110
★ 4.4 / 5If the Meaco is over budget, the Devola 12L offers excellent performance at a lower price. Which? Best Buy winner, costs less than 5p/hour, UK brand. Covers rooms up to 30m² — more than any bedroom needs. Laundry mode included.
Pros
- Which? Best Buy
- Cheapest proper compressor
- Less than 5p/hour
- UK brand
- 30m² coverage
- Laundry mode
Cons
- ✕Larger than the Meaco 6L
- ✕No built-in air purifier
- ✕Basic controls
Best for: Budget buyers who want a proper compressor dehumidifier without the Meaco price tag.
Check Price on Amazon UK →Which size do you actually need?
- Humidity 50–60%: a mini might be enough. Start with NETTA or Senelux.
- Humidity 60–70%: you need a compressor. Start with Devola 12L.
- Humidity 70%+: serious damp. Get MeacoDry Arete One 6L or larger.
Don't know your humidity? Buy a hygrometer first — it's the best £10 you'll spend.