Dehumidifier vs moisture absorber
Side by side, with running costs at the current price cap.
Moisture absorbers are for small enclosed spaces like wardrobes, cupboards and cars. They use no power but remove only a little water. A compressor dehumidifier is for rooms: a 12L model can remove litres a day for about 4–5p an hour. If windows stream with condensation, you need a dehumidifier.
Moisture absorber vs Dehumidifier at a glance
| Moisture absorber | Dehumidifier | |
|---|---|---|
| Water removed | Small amounts over weeks | Litres per day |
| Power | None | About 150–250W (compressor) |
| Running cost | Refills | About 4–5p an hour |
| Best for | Wardrobes, cupboards, cars | Bedrooms, drying washing, whole flats |
| Upfront cost | Under £15 | £100–£200 |
Choose moisture absorber if…
- It's a cupboard, wardrobe or car
- There's no power point
- You want a cheap musty-smell fix
Choose dehumidifier if…
- Windows stream with condensation
- You dry washing indoors
- Your hygrometer reads over 65%
Our picks: moisture absorber
UniBond AERO 360 moisture absorber
A no-power moisture trap for wardrobes, cupboards and small rooms. Good for musty smells, but no substitute for a dehumidifier in a wet room.
£12
Kontrol moisture trap refill crystals (5kg)
Bulk refill crystals for moisture traps. Much cheaper than branded tabs if you run several traps.
£14.03
TempPro digital hygrometer
A tiny thermometer and humidity meter. Keep indoor humidity around 40–60% and you're winning against condensation.
£7.62Our picks: dehumidifier
MeacoDry ABC 12L dehumidifier
Meaco's quiet 12L compressor dehumidifier with a laundry mode, one of the most-recommended UK dehumidifiers.
£149.95
Pro Breeze 20L OmniDry
A 20L smart dehumidifier. The Amazon listing states it is a Which? Best Buy.
£199.99£164.99–£199.99 since 6 Sep
MeacoDry Arete One 12L dehumidifier
A 12L dehumidifier with a HEPA air purifier built in.
£179.99Frequently asked questions
Do moisture traps stop condensation?
Not in a whole room. They're too slow. They help in enclosed spaces; for condensation on windows you need ventilation and a dehumidifier.
How much does a dehumidifier cost to run?
A 12L compressor dehumidifier at about 160–200W costs roughly 4–5p an hour at 26.3p/kWh.
Related
How we choose: we don’t lab-test products. Picks are based on published specifications, wattage and running-cost maths, brand track record and UK availability. Running costs use the Ofgem price cap for October–December 2026 (26.3p/kWh, electricity VAT removed). Prices on the buttons update hourly from Amazon UK. About Winter Ready.
Related: Pro Breeze 20L OmniDry review