Best Dehumidifiers Under £100
Under £100, dehumidifiers split into two camps: budget-brand compressors that pack in a lot of extraction for the money, and compact or mini units aimed at a single small room. Both have their place in a UK flat — the trick is matching the type to the job.
Just be realistic about what the price buys. Sub-£100 compressors rarely have the efficiency, quiet running or long-term track record of premium models, and minis are only ever meant for light condensation in one room.
QUICK ANSWER
Under £100 you are choosing between budget-brand compressors that offer a lot of capacity for the money, and compact or mini units for a single room. For a whole flat, a budget 10–12L compressor is the best value; for one small room, a near-silent mini.
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Who this guide is for
Anyone on a tight budget who wants to tackle condensation or damp in a flat without spending £150+ on a premium dehumidifier.
Our picks at a glance
| Pick | Best for |
|---|---|
| Budget 12L Compressor Dehumidifier | The most extraction for the least money |
| Pro Breeze 500ml Mini Dehumidifier | Light condensation in a small room |
| EasyAcc 1200ml Electric Dehumidifier | A single room with moderate condensation |
Our picks in detail
BEST CAPACITY UNDER £100 — Budget 12L Compressor Dehumidifier
Best for: The most extraction for the least money
A full-size 12L/day compressor with a tank and laundry mode for around £65 — a lot of capacity for a whole small flat at a budget price.
Pros: High capacity for the price, laundry mode, tank.
Cons: Budget brand with a less proven track record than premium models; often no humidistat.
BEST NEAR-SILENT MINI — Pro Breeze 500ml Mini Dehumidifier
Best for: Light condensation in a small room
A tiny, near-silent unit for under £30 — ideal for a wardrobe, small bedroom or caravan with mild damp.
Pros: Very cheap, near-silent, tiny.
Cons: Low capacity; empties often; not for a whole flat.
BEST MID-SIZE MINI — EasyAcc 1200ml Electric Dehumidifier
Best for: A single room with moderate condensation
A larger-tank mini that runs quietly and empties less often than a 500ml unit, for around £50.
Pros: Bigger tank than a mini, quiet, affordable.
Cons: Still limited to one room; low extraction vs a compressor.
Prices and availability on Amazon are accurate as of the date of publication and are subject to change.
How to choose
- What under £100 buys: either a budget compressor with real capacity, or a quiet mini for one room.
- Budget-brand caveat: cheaper compressors may lack a humidistat and be less efficient or durable.
- Mini vs compressor: minis suit light damp in a single room; compressors handle a whole flat.
- Running cost: without a humidistat, a unit runs constantly — watch the electricity use.
- Tank size: a bigger tank means less emptying.
- Stretch a little? Around £130 buys a proper branded compressor with a humidistat if you can.
Common questions
Is a cheap dehumidifier worth buying?
For light condensation in one room, a cheap mini is fine. For a whole flat, a budget compressor works but often lacks a humidistat and efficiency — if you can stretch to around £130 you get a much better branded unit.
What is the cheapest dehumidifier that works for a whole flat?
A budget full-size compressor around £65–£80 is the cheapest that genuinely keeps up in a flat. Below that you are into minis meant for a single small room.
Are mini dehumidifiers any good?
They are good at what they are designed for: light condensation in a small, enclosed space like a wardrobe, bathroom or single bedroom. They cannot dry out a whole flat.
Our recommendation
For a whole flat on a budget, a budget 12L compressor around £65 gives the most capacity for the money — just accept the trade-off in refinement. For one small room, the Pro Breeze 500ml Mini is a quiet, cheap fix.
