The Best Dehumidifier for a Dry, Damp-Free HomeThe Best Dehumidifier for a Dry, Damp-Free Home

The Best Dehumidifier

Or how to freshen up your home environment without spending a fortune.
Sarah Idle
Words by 
Sarah Idle
Updated 
Jun 10, 2020
Sarah Idle
Words by 
Sarah Idle
Updated 
Jun 10, 2020

Places where it’s appropriate to find mould: in Penicillin or your favourite blue cheese. Places where it’s not appropriate to find mould: any place indoors, including your home. If you’ve got a damp or mouldy home, experience hot humid summers or cold wet winters, or simply want to dry clothes inside occasionally, a dehumidifier could be your new best friend. Drawing moisture out of the air and helping to prevent mould, the best dehumidifier quickly and efficiently dries your home. It’s also easy to use thanks to a range of handy features, like a timer and different power levels. Here’s our guide to the best dehumidifiers in Australia, drawn from hours of research into expert testing and real consumer insights.

Affiliate disclosure
Best for most

Ausclimate NWT Large 35L

Effective, convenient and easy to use - the Ausclimate NWT Large 35L has it all. Removing up to 35L of moisture daily, it’s crammed with features, including a huge 6L water tank, LCD display, 12-hour timer and auto defrost. It comes with a 2-year warranty from a family-owned Aussie company.

Shop now
Ausclimate NWT Large 35L
Top
Pick
Best for eco

Ionmax ION632

For the same price as our winner, the Ionmax ION632 gives you more speeds and modes, automatic louvres, a built-in heater and silver nano technology. But you’re compromising on daily moisture removal (10L to our winner’s 35L), water tank size (3.5L to our winner’s 6L), and no LCD display.

Shop now
Ionmax ION632

How we picked

Our first stop was CHOICE, Australia’s leading consumer advocacy group. They’ve tested a range of dehumidifiers and gave us an idea of how some of them performed in a test environment. 

But we wanted to know how they performed in real Aussie homes. For that, we turned to ProductReview.com.au, Australia’s first consumer opinion website. We looked for dehumidifiers that got great reviews (ideally, 4 stars or more) from a good number of reviews (30 plus).

Between those sources, we got a range of contenders.

To narrow them down, we focused on features, including how much moisture they claimed to extract from the air daily, ease of use and handy things like timers. Bonus points were given to those that were Sensitive Choice programme approved. This programme was set up by the National Asthma Council Australia to help consumers identify asthma and allergy-aware products. 

We felt getting the tick from this programme meant that the dehumidifiers would do a good job at improving your home environment by helping to remove asthma and allergy-triggering allergens, preventing mould and mildew and reducing things like mould spores and dust mites. If air quality is a concern for you, check out our guide to Australia’s best air purifiers

This guide covers both refrigeration and desiccant dehumidifiers. Refrigeration dehumidifiers draw air in, filter it and cool it to condense the moisture (related -> portable air conditioners). Then they reheat it and push warmer, dryer air back into the room. These models work best in hot and humid conditions. That’s because hotter air is easier to cool and extract moisture from. Which means refrigeration dehumidifiers may be the best choice for Aussie homes.

Desiccant (or absorption) dehumidifiers use absorbent material to extract water from the air. The damp section then goes through a drying process, usually a heating element. This evaporates the water and collects it in the tank. Currently, desiccant dehumidifiers are thought to be less energy efficient than refrigeration ones. They suit cold spaces best, like unheated basements. 

The 6 best dehumidifiers in Australia

Best for most -> Ausclimate NWT Large 35L

Ausclimate NWT Large 35L

Effective, convenient and easy to use - the Ausclimate NWT Large 35L has it all. Removing up to 35L of moisture daily, it’s crammed with features, including a huge 6L water tank, LCD display, 12-hour timer and auto defrost. It comes with a 2-year warranty from a family-owned Aussie company.

Buy now

Type -> Refrigeration dehumidifier

When choosing a dehumidifier, you want one that’s effective, convenient and easy to use. We reckon the Ausclimate NWT Large 35L is a winner on all those counts. A large dehumidifier, it extracts up to 35L of moisture per day. This makes it suitable for rooms up to 50m2 or 125m3. 

Its extra-large 6L water tank means it can go longer between you emptying it. It also offers a continuous drainage feature. There’s a 1m drainage hose included so the water can be emptied directly into an outlet. This saves you having to empty the water tank.

Because it’s a 35L dehumidifier, it’s quite large - 34cm (w) x 25cm (d) x 54cm (h). However, it comes with sturdy castor wheels and 2 handles for easy moving. 

We like its full electronic controls with LCD display. This makes it easy to see at-a-glance what the dehumidifier is up to and for you to make changes. It includes the room temperature and humidity. You can also control the 2 fan speeds. Its other handy features include a 12-hour timer, allowing you to choose when it runs and doesn’t; an auto restart after a power failure; a full water tank auto shutoff; and auto defrost. This means the dehumidifier can work in cool indoor climates by thawing the ice that may form on its cold coils. Which might be useful for you if you have a very cold, damp home.

It comes with a 2-year warranty and has been reviewed by CHOICE. On ProductReview.com.au it has almost 5 stars from a good number of reviews and it’s Sensitive Choice programme-approved. 

Bonus: Ausclimate is a family-owned Aussie company with a focus on quality products and competitive prices. Which is why the Ausclimate NWT Large 35L is RRP $599.

Why buy the Ausclimate NWT Large 35L

35L extraction daily

Capable of extracting 35L of moisture from your home’s air daily, it’ll help keep your home warm and dry.

Large coverage area

It can be used in rooms up to 50m2.

Extra-large water tank

At 6L, you won’t be emptying the water tank every few hours.

Continuous drainage feature

With the included 1m drainage hose, you can connect it to an outlet for easy draining and no water tank emptying.

Easy to move

Despite its size and weight, it’s easy to move thanks to its sturdy castor wheels and 2 handles.

LCD display

Allows you to easily see the room temperature and humidity.

2 fan speeds

For when you need to boost its dehumidifying power.

12-hour timer

Simply set and forget. The auto restart after a power failure means if you’ve set the timer, it’ll pick up where it left off when the power’s restored.

Safety feature

The full water tank auto shutoff means even if you forget to empty the tank, it’ll shut off automatically before it poses a risk.

Auto defrost

For very damp and cold-feeling homes, this feature ensures the dehumidifier will continue to work effectively.

2-year warranty

Which is impressively long for an electronic product.

Australian business

Ausclimate is a family-owned Aussie business so you can feel like you’re supporting the local economy if you choose this.

Great consumer reviews

It gets almost 5 stars on ProductReview.com.au, with Aussies raving about its effectiveness and great customer service.

Sensitive Choice programme approved

Which means it’s a good choice for anyone with asthma or allergies.

The not-so-good bits

No cord storage

It might be easy to move around, but the cord might get in the way.

Fixed louvres

Which mean the air is only blown in 1 direction, rather than moved around the room.

In summary 

If you’re looking for an effective, convenient, easy to use dehumidifier, we think the Ausclimate NWT Large 35L is your best choice. A large dehumidifier, it removes up to 35L of moisture per day. It’s crammed with features, including an extra-large 6L water tank, continuous drainage, LCD display, 2 fan speeds, 12-hour timer, an auto shutoff and auto defrost. It comes with a 2-year warranty and a good price (RRP $599) from a family-owned Aussie company that’s renowned for its great customer service.

Best for eco -> Ionmax ION632

Ionmax ION632

For the same price as our winner, the Ionmax ION632 gives you more speeds and modes, automatic louvres, a built-in heater and silver nano technology. But you’re compromising on daily moisture removal (10L to our winner’s 35L), water tank size (3.5L to our winner’s 6L), and no LCD display.

Buy now

Type -> Desiccant dehumidifier

A worthy alternative to our Ausclimate winner is the Ionmax ION632. Coming in at the same RRP ($599), it’s similar in size (46cm (w) x 18.6cm (d) x 52cm (h) to our winner’s 34cm (w) x 25cm (d) x 54cm (h)) but removes up to 10L of moisture per day. Our Ausclimate winner removes up to 35L. Like our winner, it can handle large areas up to 50m2.

It has a 3.5L water tank, almost half the size of our winner’s 6L. It does have an optional continuous drain feature to get around frequent tank emptying. You need to buy the hose separately.

It comes packed with features. This includes a turbo mode, laundry mode and a built-in heater (related -> electrical heaters). Its louvre is automatic, and you can choose which of 3 directions to point the air in. It has 3 power levels (auto, low and high) and a 2-, 4- or 8-hour timer. As you’d expect, it has good safety features too. These include auto restart after a power cut and fall-down, water full and abnormal temperature detection.

Although it’s around the same size as our winner, it weighs less (around 8kg). Which might explain why it doesn’t have wheels but does have a fold-down carry handle.

The Ionmax ION632 claims to have more eco credentials than our Ausclimate winner. This includes it being a desiccant dehumidifier rather than a refrigeration / compressor dehumidifier. It uses a non-toxic Zeolite disc rather than potentially environment-damaging refrigerants. According to Ionmax, this disc “regenerates itself in the dehumidifying process” meaning it doesn’t need ongoing maintenance.

It also has a silver nano technology filter which helps prevent the growth of bacteria on the filter, helping to improve your home’s air quality.  

It’s recommended by CHOICE and, like our winner, has almost 5 stars on ProductReview.com.au. Although this is from a lower number of reviews. Unlike our winner, it only has a 1-year warranty.

Why buy the Ionmax ION632

Room coverage

It can remove moisture from large rooms up to 50m2. 

Continuous drainage feature

With a 3.5L water tank capacity, you can get around frequent tank emptying with the continuous drainage feature. You need to buy the hose separately.

3 power levels

Allows you to dehumidify the room to your exact needs, including a turbo mode.

Laundry mode

All dehumidifiers are good at drying your laundry but the Ionmax has a dedicated laundry mode for even better results.

Built-in heater

If you’ve got a cold house, you might enjoy the built-in heater that puts some warmth back into the room.

Automatic louvre

For even air distribution. You can choose from 3 directions.

Timer

Set a 2-, 4- or 8-hour timer so it only runs when you need it to.

Safety features

Including auto restart after a power cut and fall-down, water full and abnormal temperature detection.

Eco-friendly

Because it’s a desiccant dehumidifier, it uses a non-toxic, long lasting Zeolite disc.

Silver nano technology filter

Which helps prevent the growth of bacteria on the filter.

Visible water level

So you can see how full the tank is.

The not-so-good bits

No digital display

Which means you can’t see the room temperature or humidity. Its buttons are large and well-labelled, however. 

No wheels

Weighing around 8kg, there are no wheels for easy moving. You have 1 carry handle instead.

Noisy

At over 50 decibels, it can be annoying if you’re watching TV, chatting or sleeping. To understand what this sounds like, most fridges’ constant humming run at 30-40 decibels.

Smaller water tank

The tank is 3.5L which could mean you need to empty it frequently.

Less moisture removal

Because it’s a desiccant dehumidifier, it can’t remove as much moisture as its refrigeration / compressor sister. You’re getting 10L per day.

1-year warranty

Which isn’t great, considering it’s the same price as our winner which offers a 2-year warranty.

In summary 

Choose the Ionmax ION632 and you’re getting a desiccant dehumidifier that’s arguably eco-friendlier than our Ausclimate refrigeration / compressor dehumidifier winner. For the same price as our winner, you’re getting more speeds and modes, including a dedicated laundry one plus automatic louvres, a built-in heater and silver nano technology. But you’re compromising on daily moisture removal (10L to our winner’s 35L), water tank size (3.5L to our winner’s 6L), no LCD display and increased noise.

The competition

Here are the dehumidifiers we liked the look of but didn’t quite make the cut.

Dimplex GDDE50E

Type -> Refrigeration dehumidifier

If you’ve got a large space or need to remove plenty of moisture, consider the Dimplex GDDE50E. It can remove 50L of moisture per day and boasts a 6.5L water tank. You’ll need space for it though. It comes in at 38.2cm (w) x 30.5cm (d) x 64cm (h) and weighs around 22kg. Thankfully it has wheels and in-built carry handles.

It’s packing a lot of features. This includes 3 pre-set modes (continuous, living room and bedroom), a 24-hour timer, auto defrost, tank full indicator and continuous drainage. It also has a filter wash reminder. This means you can remove the filter and clean it yourself – no need to buy replacement filters. The easy to use digital display lets you adjust the relative humidity between 30-80%.

It has a 2-year warranty and basically the same RRP as our 2 top picks: $600. It’s been reviewed by CHOICE but isn’t on ProductReview.com.au.

Choose this if...

You need to remove a large amount of moisture per day and want 3 pre-set modes, a 24-hour timer, auto defrost, adjustable humidity and a washable filter.

DeLonghi DD30P

Type -> Refrigeration dehumidifier

The DeLonghi DD30P is the most expensive dehumidifier we reviewed, it’s RRP $649. This Tardis-like dehumidifier removes up to 30L of moisture each day. It has the largest tank of all the dehumidifiers – 7L. It offers 2 fan speeds, including a turbo mode, and a 24-hour timer. The filter is removable and washable for easy maintenance. It also has an antifreeze device which lets you use it in temperatures as low as 5°. 

Its clear digital display lets you manage the room temperature and humidity level. It’s got a water level indicator too so you can see at a glance how full it is. Integrated castors make moving it a breeze.

For long-term use and when you can’t empty it often, it has a heavy-duty pump system. This patented system can override any obstacle up to 5m in height which means you can feed the 5m hose up and through your window into a drain outside. 

It’s been reviewed by CHOICE and is Sensitive Choice programme approved. So far, it hasn’t impressed Aussies. It has 1 star on ProductReview.com.au. But this is from a very limited number of reviews (2!). It comes with a 2-year warranty.

Choose this if...

You want a large tank dehumidifier that features a heavy-duty pump that allows you to feed a hose up and through a window into an outside drain.

Ionmax ION612

Type -> Desiccant dehumidifier

Another Ionmax, the ION612 comes in at RRP $469, about $130 less than our runner-up. Which means its moisture removal is less too – it can handle up to 7L a day, compared to our runner-up’s 10L. Ionmax reckons it’s suitable for 20-30m2 rooms and it has a water tank capacity of 2L.

It has 4 relative humidity levels to choose from, including 40%, 60%, 80% and laundry mode. It also has 3 power levels: auto, low (quiet) and high. The louvres are automatic, and you can choose from 3 directions. There’s a water level indicator on both sides, an 8-hour timer and a continuous drainage option.

Like our runner-up, it has a silver nano technology filter to help prevent bacteria growth on the filter and the self-regenerating non-toxic Zeolite disc. Its safety features include auto restart after a power cut plus fall-down, water-full and abnormal temperature detection.

It comes with a 1-year warranty and is recommended by CHOICE. It has a huge 5 stars on ProductReview.com.au, from a limited number of reviews. 

Choose this if...

You like all the features of our runner-up but you have a home that requires less daily moisture removal.

Ausclimate NWT Medium 20L

Type -> Refrigeration dehumidifier

The Ausclimate NWT Medium 20L is the most affordable dehumidifier we reviewed, coming in at RRP $449. It’s also the top-rated dehumidifier currently on ProductReview.com.au, where it gets 5 stars from over 40 reviews. 

As the name suggests, this is smaller than our Ausclimate winner. It can remove 20L of moisture a day, compared to our winner’s 35L. It suits a room up to 30m2, compared to our winner’s 50m2. It has a water tank capacity of 3.5L, compared to our winner’s 6L.

Otherwise, the features are the same: 2 fan speeds, LCD display for changing the room temperature and humidity, sturdy wheels and carry handles, auto shutoff, auto restart after a power cut, auto defrost and a 12-hour timer. It’s also been reviewed by CHOICE, is Sensitive Choice programme approved and comes with the same 2-year warranty.

A minor difference is that although it supports continuous drainage, you need to buy the hose separately.

Choose this if...

You love the features of our Ausclimate winner, but you want a smaller, more affordable alternative that’s top rated by Aussies.

How we picked

Our first stop was CHOICE, Australia’s leading consumer advocacy group. They’ve tested a range of dehumidifiers and gave us an idea of how some of them performed in a test environment. 

But we wanted to know how they performed in real Aussie homes. For that, we turned to ProductReview.com.au, Australia’s first consumer opinion website. We looked for dehumidifiers that got great reviews (ideally, 4 stars or more) from a good number of reviews (30 plus).

Between those sources, we got a range of contenders.

To narrow them down, we focused on features, including how much moisture they claimed to extract from the air daily, ease of use and handy things like timers. Bonus points were given to those that were Sensitive Choice programme approved. This programme was set up by the National Asthma Council Australia to help consumers identify asthma and allergy-aware products. 

We felt getting the tick from this programme meant that the dehumidifiers would do a good job at improving your home environment by helping to remove asthma and allergy-triggering allergens, preventing mould and mildew and reducing things like mould spores and dust mites. If air quality is a concern for you, check out our guide to Australia’s best air purifiers

This guide covers both refrigeration and desiccant dehumidifiers. Refrigeration dehumidifiers draw air in, filter it and cool it to condense the moisture (related -> portable air conditioners). Then they reheat it and push warmer, dryer air back into the room. These models work best in hot and humid conditions. That’s because hotter air is easier to cool and extract moisture from. Which means refrigeration dehumidifiers may be the best choice for Aussie homes.

Desiccant (or absorption) dehumidifiers use absorbent material to extract water from the air. The damp section then goes through a drying process, usually a heating element. This evaporates the water and collects it in the tank. Currently, desiccant dehumidifiers are thought to be less energy efficient than refrigeration ones. They suit cold spaces best, like unheated basements. 

Important features to consider

If you’re trying to find the best dehumidifier for you, consider these features.

Adjustable power or fan settings

All dehumidifiers should offer you different power or fan levels. This means if you’re trying to dry laundry inside, you can switch it to high for extra dehumidifying power. 

Movability

Dehumidifiers can be heavy, especially when they’re full. Look for models that have in-built wheels and handles for easy moving. Cord storage is handy when you’re moving it too.

Water tank size

The bigger the tank, the bigger and heavier the dehumidifier. But also, the less times you’ll have to empty it. If space is a concern, look for a smaller tank. Try to avoid going any smaller than 4L, otherwise you’ll be emptying it a lot every day.

Continuous drain

If emptying a water tank seems like a drag, see if you can find one with a continuous drain. This is ideal for a dehumidifier that you run for a long time in the same location, like the basement. Rather than having to empty it, a drainage hose will direct the collected water straight into a drain. Not all models come with a drainage hose, so you may have to buy one separately.

Big, well-labelled buttons

The best dehumidifier is easy to use. This is helped by big, well-labelled buttons. 

A timer

For the ultimate in set-and-forget go for a model with a timer. The more expensive models offer an up to 24-hour timer. More affordable models go for set times, like 2, 4 or 8 hours. A timer means your dehumidifier will only run when you tell it too. This can save you energy and money.

Auto restart

If your dehumidifier is running and a power cut happens, auto restart will ensure it starts again when the power is restored. This keeps your dehumidifier running with minimal input from you.

What you get if you spend more

If you choose a more expensive option, you’ll probably get a bigger water tank capacity and a bigger daily moisture removal – up to 50L a day. You also might see these features.

Auto defrost 

If you live in a low-temperature area or your home is particularly cold and damp, auto defrost can be helpful. It thaws any ice that may develop on the coils and affect its performance.

LCD display

Rather than dials and buttons, you might get an electronic display. This gives you at-a-glance info about the room the dehumidifier is running in. This normally includes the room temperature and humidity levels. 

Heavy-duty pump system

Although most dehumidifiers have an optional continuous drainage feature, we only reviewed one with a heavy-duty pump system. That’s the DeLonghi DD30P, which is also the most expensive one we reviewed. Normally a continuous drainage feature is gravity-fed, which means the drainage pipe must flow down from the dehumidifier to work effectively. A heavy-duty pump system can work against gravity. Basically, you can feed the drainage pipe up from your humidifier. This is handy if you have a drain directly outside the room because you can feed the drainage pipe up and through your window.

Humidistat

You can change the power level on most dehumidifiers, but you can’t always set the target relative humidity for the room. More expensive dehumidifiers will let you choose a target humidity on a percentage scale, i.e. 30-70%.

Fancier filter

All dehumidifiers have filters. Pay more and you might get a washable filter which helps you extend its life. Or you might get one with silver nano technology which helps prevent bacteria growth on the filter. This is claimed to help improve your home’s air quality. Only the 2 Ionmax models we reviewed offer this.

Desiccant dehumidifier

You don’t necessarily pay more for a desiccant dehumidifier, our Ionmax runner-up is the same RRP as our refrigeration dehumidifier winner, but they don’t have the same extraction power. So, our Ausclimate winner can extract up to 35L of moisture a day. In comparison, the Ionmax runner-up extracts up to 10L of moisture a day.

The bottom line

The best dehumidifier helps your home become the haven you crave – warm, dry and damp- and mould-free. It hums along nicely with little input from you, either in the hours it operates or how often you need to empty it. It effectively removes moisture from the air without causing your power bill to rocket. It’s easy to use, with well-labelled buttons or a digital display, and easy to move thanks to sturdy wheels and handles.

We think the Ausclimate NWT Large 35L ticks all those boxes. It extracts up to 35L of moisture each day, making it suitable for rooms up to 50m2 or 125m3. Its extra-large 6L water tank won’t need to be emptied constantly. Although you can bypass that altogether with its continuous drainage feature and included 1m drainage hose. It has full electronic controls with LCD display, allowing you to easily control the room temperature and humidity. It comes with a range of features, including a 12-hour timer, 2 fan speeds, and auto restart, shutoff and defrost. Plus, Ausclimate is a family-owned Aussie company that’s renowned for its great customer service – it comes with a 2-year warranty.

The same price as our Ausclimate winner, the Ionmax ION632 is a good alternative. It removes up to 10L of moisture per day and is packing a 3.5L water tank, with an optional continuous drain feature. It has a turbo mode, laundry mode, built-in heater, automatic louvre, 3 power levels and an up to 8-hour timer. It also has a silver nano technology filter and uses a non-toxic, long-lasting Zeolite disc, boosting its eco credentials. It’s lacking our winner’s LCD display and it’s also noisier.

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