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Buying guide

Best dehumidifiers for caravans and motorhomes

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

    7.5 L/day

    EcoAir DD1 Classic MK6: 300 W, 6 kg, auto restart

    300 W is the lowest single rated figure in this guide, which leaves more of a hook-up supply free.

  • Best value

    8 L/day

    EcoAir DD128: 6.1 kg with auto restart and overdry guard

    Auto restart, tilt over stop and over drying protection are all listed as safety features.

  • Most features

    10 L/day

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

    Up to 10 litres a day at temperatures as low as 1 °C, the most in this guide.

A caravan or motorhome sitting on the drive through winter gets cold, and cold is where compressor dehumidifiers slow down. Desiccant models keep working in low temperatures, weigh less and are easier to lift through a narrow door. On a site hook-up the rated wattage matters too, because the dehumidifier shares a limited supply with the heater, fridge and kettle, so check the figures below against your own hook-up before you buy. Auto restart is the other must for a van left on a timer or a supply that drops out. This guide compares six desiccant units from EcoAir, Meaco and De'Longhi on rated power, weight, daily extraction, how cold the maker says they will work and whether the listing states auto restart.

All products compared

The products in detail

No. 1 · EcoAir

EcoAir DD1 Classic MK6: 300 W, 6 kg, auto restart

7.5 L/day

A light electronic desiccant unit with economy mode, a 2, 4 or 8 hour timer and auto restart after a power cut, rated from 1 to 40 °C.

In its favour

  • 300 W is the lowest single rated figure in this guide, which leaves more of a hook-up supply free.
  • Auto restart after a power cut is stated, along with tilt over stop and water full shut down.
  • ECO E7S mode switches between full power, economy and standby on its own.

Good to know

  • 7.5 litres a day is modest if the van is very wet after a leak.
  • The listing does not give the tank size in its bullets or mention a drain hose.
Check price on AmazonAffiliate link

Listing title: EcoAir DD1 Classic MK6 Blue Desiccant Dehumidifier | Electronic Contro...

No. 2 · EcoAir

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

10 L/day

The highest extraction desiccant here, with laundry mode, a timer up to 12 hours, a swinging louvre and a 1 m drain hose.

In its favour

  • Up to 10 litres a day at temperatures as low as 1 °C, the most in this guide.
  • Slim 22 cm deep body is easier to fit beside a caravan seat or in a motorhome aisle.
  • Supplied 1 m hose allows continuous drainage into a container or sink.

Good to know

  • 370 W rated power is higher than the DD1, which matters on a weak hook-up.
  • The 3 litre tank fills quickly at full output without the hose.
Check price on AmazonAffiliate link

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

No. 3 · EcoAir

EcoAir DD128: 6.1 kg with auto restart and overdry guard

8 L/day

A 6.1 kg desiccant model with a 3D louvre, ioniser, 2.2 litre anti drip tank and auto restart, quoted for areas up to 66 m².

In its favour

  • Auto restart, tilt over stop and over drying protection are all listed as safety features.
  • 2.2 litre tank has a lid and handle to cut spills when carrying it out of the van.
  • At 6.1 kg it is among the lightest units compared here.

Good to know

  • Power runs up to 623 W on high, so it may need managing on a small hook-up.
  • The listing does not state a minimum working temperature.
Check price on AmazonAffiliate link

Listing title: EcoAir DD128 Blue Desiccant Dehumidifier | Electronic Control | 8 L/Da...

No. 4 · Meaco

Meaco DD8L: desiccant for unheated rooms, self restart

8 L/day

Meaco's 8 litre desiccant dehumidifier with an ioniser, antibacterial filter, laundry mode and timer, aimed at unheated rooms below 10 °C.

In its favour

  • The title states it is ideal for unheated rooms below 10 °C, which fits a van in storage.
  • Self restart is stated in the listing title.
  • Meaco Control Logic, laundry drying and a timer are listed features.

Good to know

  • 660 W is the highest rated power here and could trip a low amp hook-up with other loads.
  • At just over 7 kg it is the heaviest unit in this guide.
Check price on AmazonAffiliate link

Listing title: Meaco DD8L desiccating dehumidifier – Ioniser – ideal for use in unhea...

No. 5 · EcoAir

EcoAir DD2 Simple: 9 L/day with a 3 year warranty

9 L/day

A simple electronic desiccant unit with economy and laundry modes, a 3 litre tank and an optional 1 m drain hose.

In its favour

  • Low setting is listed at 260 W, useful when the hook-up is shared.
  • Extracts up to 9 litres a day at temperatures as low as 1 °C.
  • A 3 year warranty is stated in the title.

Good to know

  • Auto restart is not mentioned in the listing, a gap for a van left unattended.
  • Noise rises to 46 dBA on high, according to the maker.
Check price on AmazonAffiliate link

Listing title: EcoAir DD2 Simple Desiccant Dehumidifier | Electronic Control | 9L/Day...

No. 6 · De'Longhi

De'Longhi AriaDry Light DNS65: zeolite, 34 dB

6 L/day

A compressor free zeolite dehumidifier with an ioniser, three position swing flap, 8 hour timer and a stated 34 dB noise level.

In its favour

  • De'Longhi says the zeolite design keeps absorption steady even at low temperatures.
  • 34 dB stated noise suits a van where you sleep close to the unit.
  • Swing flap and laundry function help dry damp towels and coats.

Good to know

  • 6 litres a day is the lowest extraction here, with 520 W rated power.
  • Auto restart and a minimum temperature are not stated in the listing.
Check price on AmazonAffiliate link

Listing title: De'Longhi Tasciugo AriaDry Light - Portable Home Dehumidifier, Zeolite...

More buying guides: Desiccant dehumidifiers

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.