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Buying guide

Best dehumidifiers under £300

Chosen from what the Amazon listings state, not tested by us. How we pick

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Top picks at a glance

Compare them all
  • Best overall

    30 L/day

    Pro Breeze 30L/day: smart app and drain hose

    Set a target between 30 and 80 percent and it switches off once reached.

  • Best value

    21 L/day

    Ariston Deos 21S NET: 20 L/day for up to 52 m²

    Quoted for areas up to 52 m², the largest recommended area among these 20 litre models.

  • Most features

    10 L/day

    EcoAir DD3 Slimline: 10 L/day desiccant to 1 °C

    The humidity sensor turns it off at your setting and on again when humidity rises.

You do not need a premium machine to dry a damp home. Below the top tier there are branded dehumidifiers from Ariston, Pro Breeze, Dimplex, De'Longhi, Whirlpool, Masterplug and EcoAir that cover most UK houses well. The differences are in capacity and convenience: how many litres a day, how big the tank is, what room size the maker quotes and whether there is a laundry mode for drying washing indoors. This guide compares eight branded machines on those facts from each listing. Pick the extraction rate for your home size first. A flat or single room needs around 10 to 12 litres a day, while a three or four bed house is better served by 20 litres or more. Then check the tank and drainage for how often you want to empty it.

All products compared

The products in detail

No. 1 · Pro Breeze

Pro Breeze 30L/day: smart app and drain hose

30 L/day

A 30 litre a day smart dehumidifier with a humidity sensor, adjustable target and a continuous drainage hose, so it can run without emptying.

In its favour

  • Set a target between 30 and 80 percent and it switches off once reached.
  • A continuous drainage hose means it can run without anyone emptying the tank.
  • 30 litres a day and a 4 litre tank suit a large or very damp home.

Good to know

  • The listing does not mention auto restart after a power cut.
  • No noise figure is stated for bedroom use.
Check price on AmazonAffiliate link

Listing title: Pro Breeze 30L/Day Dehumidifier - Smart Compressor Dehumidifier with A...

No. 2 · Ariston

Ariston Deos 21S NET: 20 L/day for up to 52 m²

21 L/day

A UK specification 20 litre class unit with Super Laundry mode, optional app control and a supplied HEPA filter.

In its favour

  • Quoted for areas up to 52 m², the largest recommended area among these 20 litre models.
  • The Ariston Clima app sets humidity and schedules running times from your phone.
  • Super Laundry mode sets the fan speed from the humidity and temperature it senses.

Good to know

  • Noise, wattage and tank size are not stated in the listing.
  • The title says 21 L/day but the bullets say 20 litres a day, so expect the lower figure.
Check price on AmazonAffiliate link

Listing title: Ariston Deos 21S NET Dehumidifier 21L/Day - Ideal for Damp Home

No. 3 · EcoAir

EcoAir DD3 Slimline: 10 L/day desiccant to 1 °C

10 L/day

A desiccant unit with all three key features: a humidity sensor, automatic restart and a supplied drainage hose. Suits cold, damp rooms.

In its favour

  • The humidity sensor turns it off at your setting and on again when humidity rises.
  • Automatic restart is listed, so it resumes after a power cut.
  • Desiccant extraction down to 1 °C suits cold bedrooms with streaming windows.

Good to know

  • 10 litres a day is less than the compressor models in a warm house.
  • The 1 m hose is short, so it must sit near a drain point.
Check price on AmazonAffiliate link

Listing title: EcoAir DD3 Slimline 10L Desiccant Dehumidifier Electronic Control 10 L...

No. 4 · De'Longhi

De'Longhi DEXD216RF: 16 L/day with triple filter

16 L/day

A De'Longhi AriaDry with triple filtration, a tumble drying function, wheels and a hose for continuous emptying.

In its favour

  • Dust, allergen and activated carbon filters are all included, per the listing.
  • A dedicated drying function is selected from the digital interface.
  • Wheels and handles make it easy to move, with a hose included for drainage.

Good to know

  • The 2.1 litre tank is small for 16 litres a day if you do not use the hose.
  • The listing gives no room size and no noise figure for this model.
Check price on AmazonAffiliate link

Listing title: De'Longhi AriaDry DEXD216RF Multi-Purpose Dehumidifier, Removes Moistu...

No. 5 · Dimplex

Dimplex EverDri 20L: humidistat, timer and carbon filter

20 L/day

A straightforward 20 litre dehumidifier with an electronic humidistat, a timer and a coloured light that shows when the room reaches the set level.

In its favour

  • The comfort light turns green at the set humidity, red when too dry and blue when too humid.
  • A washable pre-filter plus a separate active carbon filter for odours are included.
  • The 3 litre tank is clear, so the water level is visible, and it shuts off when full.

Good to know

  • The listing does not state noise or a reliable power figure.
  • No continuous drainage option is mentioned in the listing.
Check price on AmazonAffiliate link

Listing title: Dimplex EverDri Dehumidifier with Humidistat & Timer, Auto-shut off, 2...

No. 6 · Masterplug

Masterplug 12L smart: dehumidifier, HEPA and ioniser

12 L/day

A 3 in 1 dehumidifier, air purifier and ioniser with a laundry mode, app control and a low 185 W rating.

In its favour

  • A dedicated laundry mode is one of six listed modes.
  • 185 W is a low rating, so long laundry sessions cost less to run.
  • App schedules let you start a drying session at a set time.

Good to know

  • No louvre or airflow direction feature is described.
  • The listing does not give a believable tank size.
Check price on AmazonAffiliate link

Listing title: Masterplug 3 in 1 Smart Dehumidifier with Air Purifier and Ioniser, 12...

No. 7 · De'Longhi

De'Longhi DEX210SF: 10 L/day, 37 dB, laundry mode

10 L/day

A compact De'Longhi with continuous drainage through an external hose, a full tank light and automatic shut-off, quiet enough for night use.

In its favour

  • Condensate can flow out through an external hose for continuous drainage.
  • De'Longhi states 37 dB, so it can run overnight in a bedroom with condensation.
  • A full tank light and transparent window show when to empty it.

Good to know

  • The listing does not describe a general humidistat or auto restart.
  • Quoted for rooms up to 45 m³, so it is a single room unit.
Check price on AmazonAffiliate link

Listing title: De'Longhi Tasciugo AriaDry - Portable Home Dehumidifier with 3-Action ...

No. 8 · Whirlpool

Whirlpool DE20W5252: 20 L/day with 6.5 L tank

20 L/day

A 20 litre Whirlpool dehumidifier with a 6.5 litre tank and touch screen controls, quoted for large rooms up to 30 m².

In its favour

  • The 6.5 litre tank is the largest in this group, so it needs emptying less often.
  • Whirlpool states it can cut laundry drying time by 50 percent.
  • Touch screen controls for picking programmes, according to the listing.

Good to know

  • The quoted room size of 30 m² is the smallest here despite the 20 litre rating.
  • Noise level and a believable power figure are not given in the listing.
Check price on AmazonAffiliate link

Listing title: WHIRLPOOL DE20W5252 DEHUMIDIFIER 20LTR/Day, Tank 6.5L

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Damp and Dry chooses every product independently, based on what its Amazon listing states. We may earn a commission on purchases made through the affiliate links above. As an Amazon Associate we earn from qualifying purchases.