10L vs 12L vs 20L dehumidifier — which capacity do you need?
What the litre rating on a dehumidifier really means, and how 10L, 12L, 20L and 25L models compare on capacity, size, noise, tank and running cost in UK homes.
Before spending money, it helps to know whether your problem needs a dehumidifier at all — and if it does, what size and type.
These guides are written to help you buy once and buy right, not to push the most expensive option.

What the litre rating on a dehumidifier really means, and how 10L, 12L, 20L and 25L models compare on capacity, size, noise, tank and running cost in UK homes.
The clear signs your home is too humid — from streaming windows to musty wardrobes — how to confirm it with a hygrometer, and when a dehumidifier isn't the answer.
How dehumidifiers, tumble dryers and heated airers compare for drying clothes in a UK home — running cost per load at current prices, speed, damp and upfront cost.
A plain-English guide to choosing a dehumidifier for a UK home — compressor or desiccant, the features worth paying for, and the marketing claims to ignore.
How moisture absorbers, rechargeable silica units and mini and full-size dehumidifiers compare on capacity, cost and where they work — and which suits your problem.