Zenolix BW405-02 dehumidifier, 1.8-litre tank

The Zenolix BW405-02 is a compact dehumidifier with a 1.8-litre tank, automatic defrost and sleep mode. The listing claims moisture removal of up to 650 ml per day under stated warm, humid conditions, so treat that figure as conditional rather than an all-day rate in every room.

At a glance

The 1.8-litre tank is paired with automatic shut-off when full and an LED tank-full alert, according to the listing.
The listed 24-hour timer and sleep mode are intended for scheduled or overnight use. Sleep mode is described as turning off the screen and coloured lights.
Seven-colour lighting is described as optional ambient illumination.
The claimed extraction rate is up to 650 ml per day at 30 °C and 80% relative humidity, not an unconditional rate for all conditions.

Price

£49.99Save 29%

Reference price: ~~£69.99~~

Price checked: 14 Nov 2026

View offer Ahead of Black FridayExplore the selection

Pros and cons

Pros

Automatic shut-off and a full-tank indicator help limit overflow and make it clearer when the tank needs emptying.
The timer and sleep mode offer controls for planned use, with the listing saying the display and coloured lights switch off in sleep mode.
The listed 1.8-litre tank and compact dimensions suit buyers considering a small unit for a bedroom, bathroom or wardrobe.

Cons

The stated extraction capacity is modestly defined by a specific warm, humid test condition, so the listing does not establish performance in cooler or drier rooms.
The 1.8-litre tank may need regular emptying during extended operation, depending on how much moisture is collected.

Technical specifications

11 specifications

Identity
Brand	Zenolix
Model	BW405-02
Colour	Whisper White

Moisture collection
Tank capacity	1.8 litres
Maximum moisture removal	up to 650 ml of moisture per day at 30 °C and 80% relative humidity

Operation
Listed features	Automatic Defrost, Quiet Operation, Sleep Mode, Timer
Power consumption	22.5W
Claimed noise level	under 38dB

Dimensions and installation
Dimensions listed	17D x 17W x 28.6H centimetres
Dimensions in feature text	17.2x17.2x28.6 cm
Weight	1.4 kg

What to know before buying

Listing details to confirm

Listing details are inconsistent: dimensions are given as 17D x 17W x 28.6H centimetres in the specifications and 17.2x17.2x28.6 cm in feature text. The listed noise claim is under 38dB, while the title's high-efficiency and energy-saving wording is not supported by comparative data. The stated 0.54kWh for 24-hour operation is consistent with the listed 22.5W only as an arithmetic claim, not an independent measurement. The extraction figure applies at 30 °C and 80% relative humidity, and performance in other conditions is unconfirmed.

Who is it for?

A good fit for

People seeking a small dehumidifier for a bedroom, bathroom, kitchen, wardrobe or caravan, as named in the listing.
Buyers who value a timer, sleep mode and automatic shut-off when the tank is full.
Those considering a compact unit for local moisture management rather than assuming the listed extraction rate applies to larger spaces or different conditions.

Less suited to

Buyers who need a substantiated extraction rate across varying temperatures and humidity levels.
Anyone needing evidence of performance for a large area, since the supplied listing gives no room-coverage figure.

Zenolix BW405-02 dehumidifier, 1.8-litre tank · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.9 / 5 · 34 ratings

5 stars92%92%
4 stars8%8%
3 stars0%0%
2 stars0%0%
1 star0%0%

The supplied evidence contains aggregate ratings but no customer-comment summary. The ratings are strongly favourable overall, but they do not establish what buyers liked or disliked. They cannot confirm the listed extraction rate, noise level or performance in a particular room.

Frequently asked questions

What moisture removal rate does the listing claim?

It claims up to 650 ml per day at 30 °C and 80% relative humidity. That rate is tied to those stated conditions and should not be treated as guaranteed in a cooler or drier room.

What happens when the tank is full?

The listing says the unit automatically shuts off and an LED indicator alerts you to empty the tank.

What does sleep mode do?

The listing describes sleep mode as switching off the screen and coloured lights. It also claims operation under 38dB, but that noise figure is not independently verified.

Are the dimensions confirmed consistently?

No. The specification lists 17D x 17W x 28.6H centimetres, while feature text gives 17.2x17.2x28.6 cm. Check the selected listing if exact fit matters.