VonHaus Slimline 10L Dehumidifier review: faster laundry drying in a small package

RRP at time of testing: £85 | Check price at VonHaus or Argos

Our verdict

Once the weather turns, getting the washing dry becomes a bit of a juggling act. With four children and not much floor space, I know how quickly an airer can take over a room while the next load is already waiting in the machine. That’s what appealed to me about the £100 VonHaus slimline 10l dehumidifier: at just 27cm wide, it might fit beside the washing without getting in everyone’s way. 

Mumsnet tester Ruby is also tight for space with a 6.5m² office and 6m² bathroom, where she often dries clothes indoors. She said the 27cm-wide unit fitted where a bulkier dehumidifier would have been awkward.

It performed well in Ruby’s smaller rooms. During one session, the display dropped from 55% to 40% in 90 minutes, and she said the rooms felt “a lot dryer and comfortable”. She also found it easy to wheel the machine between rooms. 

The VonHaus 10l slimline dehumidifier halved the drying time of our tester's 6kg laundry load

Laundry mode was where it shone. Ruby’s 6kg clothes load dried in eight hours instead of her usual 16, while towels took 18 hours rather than 24 hours or more. “Thicker clothes and waist bands took longer to dry but still dried quicker, the same for towels,” she explained. In a busy household, those saved hours could free up the airer for the next load. I’m impatient enough to squeeze a fresh load onto the airer while the last one is still damp, playing laundry Tetris with wet clothes. Ruby’s timings make me think I could use this to improve my system, finally letting one load dry before starting the next. 

The 1.6-litre tank is where the compact design becomes less convenient. Ruby had to empty it before her towels were dry, and she reported, “Water did drip out the hole for the drainage pipe when it wasn’t connected”. She could work and watch TV with the machine running, but described the sound as “definitely noticeable but manageable”. She noticed it more at night, so I wouldn’t count on Sleep mode if you’re easily woken.

In the end, it depends on the size of your room and the size of your washing pile. If you’re drying several loads back to back or dealing with damp in a larger room, its 1.6-litre tank could become a faff. For a smaller room and one load at a time, Ruby found the VonHaus made a real difference to drying times. 

How we've tested the VonHaus Slimline 10L dehumidifier

Mumsnet tester Ruby put the VonHaus to work in three rooms where space matters: a 6.5m² office, a 6m² bathroom and a 14m² bedroom. She kept the doors and windows closed, ran it several times in the office and tried it overnight in the bedroom twice. She also put Laundry mode through its paces with two 6kg loads: one of clothes and one of towels - both hung up on a standard airer as opposed to a heated airer.

Mumsnet tester Ruby Robinson tested the VonHaus dehumidifier's Laundry mode and Auto mode

Ruby timed how long the washing took to dry, kept an eye on the humidity display and water collected, and tried the Auto and Sleep modes, timer, tank and drainage hose. The heating was off during testing, with room temperatures ranging from 17°C to 26°C. I’ve based this review on her notes and results.

There are a couple of limits to those results. Ruby didn’t use a separate humidity meter or measure electricity use, and a short test can’t tell us how the machine would cope with persistent damp through winter. But she used it in her home, alongside her usual laundry routine, so her results give us a useful picture of what it’s like to live with.

What’s in the box?

• VonHaus Slimline 10L dehumidifier with removable 1.6L tank

• 1m hose for continuous drainage

• Instructions

The VonHaus 10l dehumidifier arrived securely packed and ready to use

Everything arrived securely packed. Ruby didn’t have to assemble the machine to use its tank: she plugged it in and chose a setting. 

The drainage hose was there when she wanted to try that option.

First impressions: How easy is the VonHaus Slimline 10L Dehumidifer to set up and move around?

Getting this compact VonHaus dehumidifier up and running was simple. Mumsnet tester Ruby unpacked it, plugged it in and chose a setting. She called the instructions “very straightforward and simple to understand”. Water collects in the removable tank, so there was nothing else to assemble.

If you want it to run without stopping for a tank empty, you can attach the supplied hose at the back and direct the water downhill to a suitable drain. Ruby found this easy to attach. She also found the buttons responsive, could see the humidity reading across the room and confirmed that the child lock worked. As a mum of four, I appreciate a setting that curious fingers can’t change.

The slim design mattered in Ruby’s 6.5m² office. At 27cm wide, it fitted without taking over the floor. “Anything larger would have been difficult in the space”, she said. She found it easy to move between rooms, too, adding: “The wheels helped significantly and the handles also made the weight much more manageable.” The 1.5m cable reached where she needed it, and she liked being able to tuck it away afterwards.

Does the VonHaus 10L slimline dehumidifier reduce humidity?

Yes, to an extent. It made the biggest difference in Ruby’s smaller rooms. Its displayed reading began falling within 10 to 15 minutes and, during one session, went from 55% to 40% in 90 minutes. Ruby said: “Rooms felt a lot dryer and comfortable”. She liked Auto mode too, describing it as “Great, turning itself on and off when required”. 

I can see the appeal of choosing a humidity level and getting on with the day. With four children, I have enough things to keep an eye on without adding a dehumidifier display to the list.

A humidity display allows you to watch humidity levels drop in real time

In her 14m² bedroom, close to the top of VonHaus’s recommended room size of 15m², the change was slower, though she still noticed one. This is something to bear in mind if you have a large-open plan space or big bedrooms, where this slimline unit may start to struggle.

Also, it’s important to point out that the 55% and 40% figures are readings from the VonHaus display; Ruby didn’t check them with a separate humidity meter. 

Is the VonHaus 10l dehumidifer useful for drying laundry?

The VonHaus has two ways to deal with moisture. In Auto mode, it switches on and off to maintain your chosen humidity level. For washing, press the Mode button until the Laundry symbol lights up; the machine then runs continuously, pulling moisture from the air while clothes dry on a nearby airer.

Shirts and cottons dried significantly faster but towels and thicker fabrics took longer

That setting made a useful difference in Ruby’s home. She tried it in her office and bathroom with two 6kg loads. Clothes dried in eight hours instead of her usual 16, while towels took 18 hours rather than 24 hours or more. “Thicker clothes and waist bands took longer to dry but still dried quicker, the same is for towels,” she said. The rooms felt less humid while the washing was up, too.

The catch is the 1.6-litre tank. Ruby recorded around a litre of water during the clothes test and around 1.5 litres with the towels, and she had to empty the tank before the towels were dry. 

If you’re planning to switch it on and go out, bear in mind that the machine stops when the tank fills. The supplied hose could save you that mid-load empty if you have a suitable drain nearby, but Ruby didn’t test a larger load using it.

How noisy is the Vonhaus 10l slimline dehumidifier?

A dehumidifier you run for hours needs to be easy to live with, particularly if it’s going in a home office or bedroom. When Mumsnet tester Ruby used it during the day she noticed that this compact VonHaus dehumidifier was audible on both fan speeds but didn’t stop her working, chatting or watching TV. 

She described it as “definitely noticeable but manageable”. She could hear the compressor switch on and off, though she got used to that sound.

VonHaus lists a 30–44dB noise range and says Sleep mode operates at 30dB. Ruby didn’t measure this scientifically, but she did find that it was quieter in Sleep Mode. She ran it in her bedroom on two nights and was able to sleep. However, she reported that the noise was noticeable enough that a light sleeper might struggle to have it on beside the bed.

If noise is particularly important to you, our best dehumidifiers guide includes noise ratings for all the models we've tested.

What is the tank and continuous drainage like to use?

The 1.6-litre tank helps keep the VonHaus compact, but it needs attention when there’s wet washing on the airer. Once the tank is full, the machine beeps, shows a full-tank icon and stops dehumidifying. It won’t carry on until you empty and refit the tank. Ruby only needed to do that every four or five sessions during ordinary room use, but the tank filled before her towel load was dry.

The 1.6l tank needs emptying frequently, or the dehumidifier will automatically switch off

There is another option if you want to run it for longer. The supplied 1m hose attaches to the back of the machine and directs water downhill into a suitable drain, rather than letting it collect in the tank. Ruby found the hose easy to connect, and it drained without leaking while attached. The practical catch is finding a drain close enough; sending the water into a container would still leave you something to empty.

Ruby did notice an occasional drip when she went back to using the tank. “Water did drip out the hole for the drainage pipe when it wasn’t connected”, she reported. 

For everyday room use, the tank sounds easy enough to manage. For a long laundry session, you might want to place it near a drain or be prepared to empty it partway through.

What does it cost to run?

VonHaus rates the machine at 210W. At the Ofgem average electricity unit rate of 26.11p per kWh for July to September 2026, running continuously at that power would cost about 5.5p an hour, or 44p over eight hours. Your actual cost will depend on your tariff and how often the compressor switches off.

Ruby was comfortable using it for a laundry session or while she was in the room, but added, “I’d be hesitant to run on a 24/7 basis.” Longer use would add to your bill, and you’d need to empty the tank whenever it filled unless you’d set up the drainage hose.

Is the VonHaus Slimline 10l dehumidifier good value for money?

If the airer seems to be a permanent piece of furniture, I think the regular £100 price is reasonable for the time this VonHaus saved Ruby on two loads. She found it more effective than a budget dehumidifier she’d owned before and said she’d buy it with her own money. 

There are cheaper compact options. The Bush D015B 10L was £49 when I checked, with a slightly bigger 2-litre tank. But it has no wheels, which matters if, like Ruby, you’d move it between rooms. VonHaus also adds a hose for continuous drainage, so you can run it without stopping to empty the tank if you have somewhere suitable for the water to go.

I’d still think about the size of your room and your washing pile before buying. Ruby’s larger room took longer to feel different, and the 1.6-litre tank needed emptying before her towels were dry. If you regularly dry several loads back to back, compare the tank sizes in our best budget dehumidifiers guide.

How does the VonHaus Slimline 10L compare with other dehumidifiers?

Final verdict: Is this slimline dehumidifier powerful enough for you?

With the weather turning cooler and the airer coming back out, anything that helps get the washing dry sooner has my attention. As a mum of four with little floor space to spare, I’d also want a dehumidifier that fits beside it without taking over the room.

Ruby’s test makes a good case for this £100 VonHaus in smaller spaces. It fitted in her office, was easy to wheel between rooms and made the air feel drier. More to the point, her clothes dried in eight hours instead of her usual 16, while towels took 18 hours rather than 24 hours or more. I can see those saved hours being useful when the next load is already waiting.

The small tank is the main drawback. Ruby had to empty it before her towels were dry, and she noticed occasional drips at the unused hose opening. She could work and watch TV with it running, but light sleepers might find it too noticeable at night.

For me, the deciding factor is how much washing and damp you’re dealing with. If you’re drying one load at a time in a smaller room, this slimline model makes sense. If the machine is running back to back or you need to tackle a larger space, I’d choose a dehumidifier with a bigger tank.

About the author

Zoe Griffin is a mum of four and content writer at Mumsnet, specialising in home essentials and appliances. She’s been a journalist for 15 years and has written for The Daily Telegraph, Mail Online, Sunday Mirror and The Independent. Originally a showbiz journalist and an original 3am gossip column girl, Zoe made the switch to parenting and lifestyle content when she had her first son in 2016.

On a mission to simplify household chores so she can spend more time doing things she enjoys, Zoe loves to test household products that make life easier (and laundry piles smaller). When she’s not writing, she’s practicing karate with her seven year old daughter, cheering on Brentford FC, or squeezing in an early morning run or gym session.

About Mumsnet reviews

All Mumsnet product reviews are written by real people after weeks of research and intensive testing. We work hard to provide honest and independent advice you can trust. We sometimes earn revenue through affiliate links in our articles, which helps us to fund Mumsnet's free services.

All prices are correct at time of writing.

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