NETTA 104139 12L/Day Compressor Dehumidifier

NETTA 104139 is a compressor dehumidifier rated to extract 12 litres per day, with a 2-litre tank, humidity indicators and continuous drainage. The listing describes it for rooms up to 30m² in one feature claim, but its product details specify 20 Square Meters, so check the intended room size before buying.

At a glance

The listing states a maximum extraction rate of 12 litres per day and a 2-litre collection tank.
Humidity indicator lights are described as red above 65%, green at 45–65%, and blue below 45%.
Features listed include automatic defrost and restart, a washable filter, child lock and carry handle.
Continuous drainage is supported, and a drainage pipe is listed as an included component.

Price

£84.99Save 15%

Reference price: ~~£99.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

A stated 12-litre daily extraction rate and continuous drainage offer options for ongoing moisture removal without relying solely on emptying the tank.
Humidity indicator colours provide a quick visual guide to room humidity.
The washable filter and carry handle support routine maintenance and moving the unit between rooms.

Cons

The 2-litre tank may need regular emptying during extended use if continuous drainage is not set up.

Technical specifications

16 specifications

Identity
Brand	NETTA
Model	104139
Type	Dehumidifier

Extraction and operation
Dehumidification capacity	12 L/day
Tank volume	2 Litres
Rated power	200 watts
Operation mode	Continuous
Fan speeds	2
Listed room area	20 Square Meters
Temperature range	5°C and 35°C
Listed noise level	39dB

Dimensions and installation
Dimensions listed	22.5D x 22W x 44.5H centimetres
Weight listed	10 Kilograms

Materials and appearance
Material listed	Plastic
Colour	White

Additional details
Recommended uses	Commercial, Residential

What to know before buying

Listing details to confirm

The listing gives conflicting room coverage: product details say 20 Square Meters, while a feature claim says rooms up to 30m². The title calls the humidity control an auto sensor, but the feature description specifies colour-changing indicator lights and does not confirm automatic humidity-target control. The claimed 5p-per-hour running cost has no stated electricity-tariff basis. Confirm the exact coverage and control behaviour before buying. The listed extraction rate is a manufacturer claim, not a guaranteed result in every room or condition.

What’s in the box

Included

Continuous drainage pipe

Who is it for?

A good fit for

Households looking to manage damp or condensation in rooms within the confirmed coverage area.
Buyers who want humidity-indicator lights and the option of continuous drainage.
People who may move the unit between rooms and value a carry handle.

Less suited to

Buyers who need a confirmed room-coverage figure above 20 square metres.
Anyone seeking a large collection tank or verified running costs for their own electricity tariff.

NETTA 104139 12L/Day Compressor Dehumidifier · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 68 ratings

5 stars68%68%
4 stars24%24%
3 stars2%2%
2 stars3%3%
1 star3%3%

Customer feedback highlights perceived moisture removal and lower humidity, with reports of reduced window condensation, alongside positive comments about performance and noise. Some customers also describe it as good value, but that opinion reflects a different reported price and does not establish its current cost-effectiveness. These experiences may matter for ordinary damp-management use, while the listing's 12 L/day rate and room-coverage claims remain manufacturer specifications rather than customer-verified guarantees.

Positive themes

Customers report effective moisture removal and appreciate the performance.
Some customers describe the unit as quiet.
Some customers consider it good value.

Frequently asked questions

How much moisture can the NETTA 104139 extract?

The listing rates it at 12 L/day. Actual extraction depends on room conditions, so treat this as a stated capacity rather than a guaranteed daily result.

What room size is it listed for?

The product details say 20 Square Meters, while a feature claim says up to 30m². This discrepancy is unresolved, so confirm the suitable coverage before purchasing.

Can it drain continuously?

Yes. Continuous operation and a continuous drainage pipe are listed. The 2-litre tank is also specified for collection when not using a drain hose.

Does it automatically control humidity?

The title refers to an auto humidity sensor, but the detailed feature description explains coloured indicator lights rather than confirmed automatic target control. Check the selected listing for the control behaviour you need.