DEWEX CT18 Dual-Core Dehumidifier, 1.5 L/day, 2.5 L Tank

The DEWEX CT18 is a compact dual-core dehumidifier listing up to 1.5 litres of moisture removal per day, a 2.5-litre tank and sleep mode. Its listed extraction rate is conditional on warm, humid air, so it is aimed at smaller rooms and everyday damp rather than rapid moisture removal in larger spaces.

At a glance

Uses dual-core semiconductor cooling technology, according to the listing.
The stated maximum extraction is 1,500 ml per day at 30°C and 80% relative humidity.
Sleep mode is stated to run at around 32 dB, with the lights switched off.
A full tank triggers automatic shut-off. The listing also describes tilt shut-off protection.
A timer, touch controls, adjustable top outlet and removable washable dust filter are listed.

Price

£65.99Save 49%

Reference price: ~~£129.99~~

Price checked: 14 Nov 2026

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Pros and cons

Pros

The removable 2.5-litre tank can be emptied as needed, or the supplied drain hose can be connected for continuous drainage.
Sleep mode and automatic shut-off are useful for overnight or routine indoor operation, subject to the stated operating conditions.
The washable filter is removable, making filter maintenance more straightforward than with a fixed filter.

Cons

The listed maximum extraction is 1.5 litres per day, which is modest for buyers needing rapid moisture removal from larger or persistently damp spaces.
The stated extraction figure applies at 30°C and 80% relative humidity. The listing says water collection falls in cooler or drier rooms.
The stated daily energy use is about 0.7 kWh over 24 hours, rather than a power rating in watts.

Technical specifications

13 specifications

Identity
Brand	DEWEX
Model	CT18
Operating mode	Standard
Colour	Obsidian&gray

Moisture removal and tank
Dehumidification capacity	1.5 Liters per Day
Tank volume	2.5 Litres
Capacity	2500 Microlitres

Dimensions and installation
Dimensions listed	16D x 22W x 35H centimetres
Weight listed	1.2 Kilograms
Listed floor area	0.04 Square Meters
Recommended uses	Commercial, Residential

Materials and features
Material listed	Acrylonitrile Butadiene Styrene (ABS)
Special features listed	Automatic Shutoff, Removable Tank, Sleep Mode, Timer, Washable Filter

What to know before buying

Listing details to confirm

Listing details are inconsistent or unconfirmed: the title says 32dB while a feature calls operation 32dB and the technical details only identify Standard mode, with the around-32 dB figure specifically attributed to sleep mode. The capacity is separately listed as 2500 Microlitres, although the tank volume is stated as 2.5 Litres. Listed room coverage ranges from 20m² to 35m², while the technical floor-area field says 0.04 Square Meters. The claimed maximum extraction is conditional on 30°C and 80% relative humidity, not an unconditional daily result. Check the intended room coverage and specifications for the selected listing.

What’s in the box

Included

Air filter
Drain hose
Tank
User manual

Who is it for?

A good fit for

Buyers wanting a small-room dehumidifier with a removable tank and a continuous-drain hose option.
Bedroom or home-office users considering sleep mode, while allowing for a soft fan sound.
People seeking a timer, washable filter and adjustable airflow outlet for regular indoor use.

Less suited to

Buyers needing high extraction for larger areas or persistently damp conditions.
Anyone who needs a verified room-coverage figure before choosing a dehumidifier.

DEWEX CT18 Dual-Core Dehumidifier, 1.5 L/day, 2.5 L Tank · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.9 / 5 · 33 ratings

5 stars87%87%
4 stars13%13%
3 stars0%0%
2 stars0%0%
1 star0%0%

The supplied customer evidence consists of aggregate ratings rather than written feedback. Ratings are mostly five-star, with the remainder four-star, but they do not establish why customers rated the product positively or confirm its extraction, noise or room coverage in use.

Frequently asked questions

How much water does the DEWEX CT18 claim to remove per day?

The listing states up to 1.5 litres per day at 30°C and 80% relative humidity. It also says collection falls in cooler or drier rooms.

Can it drain continuously instead of using the tank?

The listing says to connect the drain hose for continuous drainage. The hose is included in the stated contents list.

Is it suitable for overnight use?

The listing describes sleep mode at around 32 dB with the lights off, but notes a soft fan sound may still be audible.

How large a room is it intended for?

The feature copy gives 20m² to 35m² and another answer says up to 35 m², but the technical floor-area field says 0.04 Square Meters. The room-coverage information is contradictory, so confirm it before buying.