Best Dehumidifiers

Damp air don’t care - it can ruin your belongings; warping furniture, messing with electronics, and encouraging mould growth. A dehumidifier removes moisture from the air, helping to keep your health, home and contents safe from humidity. Continue Reading...

33 listings
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Ausclimate NWT Medium 20L WDH-716DE-20R
  • Award Winner 2022
5.0 from 54 reviews

Price (RRP) $439.00

Outstanding dehumidifying abilities
Removes up to 20L of moisture daily
User-friendly - quiet and portable
  • Build Quality
    5.0 (17)
  • Value for Money
    5.0 (17)
  • Cleaning & Maintenance
    5.0 (17)
  • Noise Level
    4.4 (17)
  • Max Room Size 75
  • Moisture Removal20 litres/day (30°C @ 80% RH)
  • Water Tank Capacity3.5 L
  • Dimensions 580 x 360 x 270 mm
  • Maximum Noise Level39 db

Best Dehumidifier

Ausclimate NWT Medium 20L WDH-716DE-20R
  • Award Winner 2022
5.0 from 54 reviews

The AusClimate NWT Medium 20L high-capacity dehumidifier can remove up to 20 litres of moisture per day for rooms up to 30m², and is ideal for temperatures of 5-32°C.

Price (RRP) $439.00

Outstanding dehumidifying abilities
Removes up to 20L of moisture daily
User-friendly - quiet and portable
  • Build Quality
    5.0 (17)
  • Value for Money
    5.0 (17)
  • Cleaning & Maintenance
    5.0 (17)
  • Noise Level
    4.4 (17)
  • Max Room Size 75
  • Moisture Removal20 litres/day (30°C @ 80% RH)
  • Water Tank Capacity3.5 L
  • Dimensions 580 x 360 x 270 mm
  • Maximum Noise Level39 db
2nd Best Dehumidifier
AusClimate Cool Seasons
  • Award Winner 2022
  • 2021

AusClimate Cool Seasons

 · includes 3 listings
4.9 from 57 reviews

AusClimate Cool Seasons dehumidifiers use desiccant technology, which effectively dries the air in cool, low-humidity climates just as well as it does in hot, humid climates.

Works great in cold climates
Suitable for large rooms
Excellent at removing condensation
  • Build Quality
    5.0 (48)
  • Value for Money
    4.8 (48)
  • Cleaning & Maintenance
    5.0 (47)
  • Noise Level
    4.2 (45)
  • Max Room Size 30 to 50
  • Water Tank Capacity7 to 10 L
  • Maximum Noise Level47 db to 52 db
3rd Best Dehumidifier
Ausclimate NWT Large 35L WDH-930DA

The $599 Ausclimate NWT Large is ideal for removing humidity in warmer climates ranging from 20-32°C. It can remove up to 35 litres of water daily, in spaces of up to 50m².

Price (RRP) $599.00

Highly effective dehumidification
Prevents mould growth
Eliminates musty smells
  • Build Quality
    4.8 (12)
  • Value for Money
    4.8 (12)
  • Cleaning & Maintenance
    4.9 (11)
  • Noise Level
    3.8 (11)
  • Max Room Size 50
  • Moisture Removal35 litres/day (30°C @ 80% RH)
  • Water Tank Capacity6 L
  • Dimensions 540 x 340 x 250 mm
Ausclimate NWT Compact 12L

Ausclimate NWT Compact 12L

 · includes 2 listings
4.9 from 28 reviews

The Ausclimate NWT Compact 12L is the brand’s smallest offering of compressor dehumidifier. It’s suitable for rooms sized 20m², including boats, caravans and laundries.

Price (RRP) $349.00

Ausclimate NWT Supreme All Seasons 50L WDH-070EBP

With an impressive ability to remove up to 50 litres of moisture a day, the $849 Ausclimate NWT Supreme All Seasons is a compressor dehumidifier that’s ideal for large, humid rooms.

Price (RRP) $849.00

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Ionmax ION632
4.7 from 26 reviews

Latest review: I purchased this unit for my parents and trialed it at my house first. Amazing performance, so much water extracted from the air. Highly recommend, if you can get your hands on it (sold out in alot

Price (RRP) $599.00

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Price (RRP) $469.00

DeLonghi Ariadry DDS 25 / DDS 30

DeLonghi Ariadry DDS 25 / DDS 30

 · includes 3 listings
3.4 from 18 reviews

Latest review: We bought this for the other end of the house, instead of moving around the old Delonghi CFO8E that is still going strong after many years. Initially we weren't sure if the newer model would be as

Price (RRP) $499.00 to $649.00

Price $669 Bing Lee

Breville Air Dehumidifier Range

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 · includes 5 listings
3.4 from 13 reviews

Breville has a range of products in their Air Dehumidifier Range that help control dampness and mould in your home, with different dehumidifiers suited to different sized rooms.

Price (RRP) $349.95 to $599.95

Price $499 Bing Lee

Ausclimate NWT All Seasons 35L WDH-930EDH

Latest review: Very noisy but unable to compare as have not used other systems. Great that it has the option to have drain directly to a drain and not only the tank. I've run it now in a room 6m X 6m and emptied

Price (RRP) $649.00

DeLonghi Tasciugo AriaDry Pure DDSX220WF

Latest review: Bought the machine from the Good Guys online and box was all damaged with lots of sticky tape over it, instruction manual already opened - looked just like a returned item. This is "not" the first

Delonghi DES16EW
3.8 from 5 reviews

Latest review: Had this unit four years now and it works very well and so far zero issues not too noisy and in the cooler Uk months works well with no condensation on any windows in the

Price (RRP) $449.00

Ionmax ION681
3.0 from 5 reviews

Latest review: I put it on auto and the book says it will switch off below 55 % it goes continuously. Tried it in the lounge with heat pump on but still stays on. Absolute rubbish

Price (RRP) $199.00

AusClimate NWT Medium+ 25L WDH-1920EA

Latest review: With the recent consistent rain in Sydney, I had some serious humidity and mold issues around the house. After using this, I could not believe how much water it extracted! Don't waste your money on

Price (RRP) $549.00

Ionmax ION622
2.8 from 4 reviews

Latest review: It’s so crazy how much water this can pull from the air, solved my mould issue and one of my best appliances, highly recommended -quiet and effective and easy to e

Price (RRP) $299.00

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Latest review: Researched dehumidifiers on quality and price, tried one first at one house and found performance good so purchased another two for another house, easy to use, quality build quality seems good, great

Price (RRP) $359.00

Damp Solutions ADH-1000 Airrex

Latest review: Have been using this Airexx unit for drying inside homes and offices for the past 12 months, keeps ticking over with out missing a beat. easy to move around in and out of my truck. Metal body is very

Price (RRP) $3,850.00

DeLonghi Tasciugo AriaDry Multi DEXD216F

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Ad
Ausclimate NWT Medium 20L WDH-716DE-20R
  • Award Winner 2022
5.0 from 54 reviews

Price (RRP) $439.00

Outstanding dehumidifying abilities
Removes up to 20L of moisture daily
User-friendly - quiet and portable
  • Build Quality
    5.0 (17)
  • Value for Money
    5.0 (17)
  • Cleaning & Maintenance
    5.0 (17)
  • Noise Level
    4.4 (17)
  • Max Room Size 75
  • Moisture Removal20 litres/day (30°C @ 80% RH)
  • Water Tank Capacity3.5 L
  • Dimensions 580 x 360 x 270 mm
  • Maximum Noise Level39 db
Page 1 of 2
woman replacing water tank inside dehumidifier
A woman replacing the water collection tank inside a dehumidifier after emptying it.

What is a dehumidifier used for?

A dehumidifier is a household appliance that is designed to make air in your home less humid. It does this by using a built-in fan to suck air into the unit. Moisture is then removed using either a refrigerant compressor or a desiccant wheel. The dehumidified air is then released back into a room, often via an air filter that removes dust, pollen, mould spores and bacteria. This makes a dehumidifier great for mould.

The moisture extracted from humid air collects inside a dehumidifier's water tank, which needs to be removed and emptied when full.

Pros

Great for high humidity climates.
Suitable if your home has poor ventilation.
Prevents condensation build-up if you don't have an extraction fan in the bathroom or an exhaust hose in the laundry for your dryer, especially heat pump dryers.
Stops mould and mildew from growing on walls, furniture, clothing and other belongings.
Prevents timber from cracking and warping, and metal from rusting.
Helps alleviate allergy and asthma symptoms, as mould and dust mites can be caused by high humidity.
Prevents musty smells.
Can help lessen stains caused by mild water damage.

Cons

Dehumidifiers can be expensive - the cheapest models start at around $200.
These appliances can be loud - operating at higher than 50dB.
Dehumidifiers leave a room warmer, which could be frustrating in hot weather.
The Dry Mode/Dehumidifying Function on your air conditioner, common in split system ACs, may be just as effective.

Types of Dehumidifiers

Desiccant Dehumidifiers

Also called absorption dehumidifiers, these work by drawing air over a rotating desiccant wheel inside the appliance. The desiccant on the wheel absorbs the moisture. The desiccant is a drying agent such as silica gel (like in those little packets of gel balls you find in shoeboxes). The air that is vented into the room is drier, and the damp part of the wheel is also dried out using an internal heating element. Excess water is collected in the tank.

Due to the heating element in the dehumidifier, a desiccant dehumidifier can make a room around 10-12°C warmer than it was to begin with. As a result, they're better suited to cold climates.

Compressor Dehumidifiers

These are also named refrigerant dehumidifiers, or mechanical dehumidifiers. They draw in moist air and run it over refrigerated cooling coils. The coils separate water vapour into two parts, water and drier air. Drier air re-enters the room, and water is collected in the dehumidifier's water tank.

Since compressor dehumidifiers contain a refrigerant, they need to be colder than the temperature outside the unit to work effectively. That's why they are suited to hotter climates.

Which dehumidifier is better, compressor or desiccant?

Factor

Desiccant dehumidifier

Compressor dehumidifier

Climate

Better for cold, damp climates consistently under 20°C - but they can still operate in both hot and cold climates effectively.

Suitable for hot, humid climates with above-20°C temperatures.

Temperature

Warms up the room temperature by 10-12°C.

Makes air around 1-2°C warmer.

Build

Smaller, lighter and easily portable (the wheel and heater are typically lighter than a compressor).

Bulkier and heavier, due to the compressor.

Size

Correctly sized and cost-effective for smaller rooms.

More options for larger rooms and open-plan spaces.

Noise level

Quiet than compressor models, starting at around 35dB.

Noisier to operate, typically starting at 50dB.

Availability

Less commonly available to buy.

Many more compressor models on the market.

Other factors to consider when buying a dehumidifier

Size

Dehumidifier manufacturers will state the right room size for a particular model, in square metres or cubic metres (which is a more accurate measure if your room has high ceilings). It’s advisable to measure your room to make sure a dehumidifier is the correct size. It’s better to get a dehumidifier that’s slightly larger or overpowered, rather than underpowered.

The size of a dehumidifier also affects its water removal rate. As an example, here are the sizes of Ausclimate dehumidifiers. Ausclimate currently takes out all Top 5 spots in the Dehumidifiers category on ProductReview.com.au.

Dehumidifiers Size Guide

  • Small: 12-16 L (For rooms 20-25m²)
  • Medium: 20-25L (30-38m²)
  • Large: 35 - 50 L (50msq-105m²).

Ease of use

This is influenced by a number of factors, including:

  • Portability: How heavy is the dehumidifier? If it’s a larger model, make sure it’s a portable dehumidifier equipped with castor wheels and a carry handle so you don’t strain your back.
  • The water tank: Check how easy this will be to empty and to clean, especially if the tank is small and you have to do it frequently.
  • Air purifying filters: These should also be easy to remove and clean, as a clogged filter can affect air quality and the overall appliance performance. Washable filters are convenient and cost-effective.
  • Controls: All controls should be clearly labeled and easy to navigate through.

Price

Dehumidifiers range in price from around $200 - $1, 000. On the lower end of the spectrum you’ll find small desiccant dehumidifiers, and on the more premium end, large compressor models.

The initial investment in a dehumidifier can seem expensive. It’s worth noting though that if you live in a high-humidity climate, a reliable dehumidifier can save you time and money in the long-run; avoiding problems caused by mild damp, mould, and mildew... and sometimes even your sheets being so soaked you can’t get into bed.

Features

  • Humidistat: This lets you set a target for the humidity level. The optimum humidity level in a room is 50%, but anywhere between 40-60% is healthy.
  • Water tank: A small water tank can be around 2 litres; a medium-sized one 4 litres; while larger model is 8 litres or so. Its size determines how frequently you’ll need to empty the tank before the dehumidifier can continue running.
  • Continuous drainage: This feature uses a hose to convey condensed water straight into a drain, rather than into the water tank. It’s handy if you’re using the dehumidifier mainly in one room, or for extended periods of time.
  • Filters: Most dehumidifiers have air filters for trapping airborne contaminants, and some premium models have UV filters for removing bacteria. This makes them work like a dehumidifier and air purifier in one.

Do dehumidifiers help with flooding?

When a dehumidifier can help with flooding

  • You’ve had the water pumped out of your house using a water extraction service or system.
  • You've had a water leak, and have identified and patched up the source of the leak.
  • A dehumidifier can remove moisture lingering in the air, even after flood water has been removed. If light moisture has collected on drywalls, wood, and is on the surfaces of carpets and walls, a dehumidifier can remove it.

When a dehumidifier can't help with flooding

A dehumidifier unfortunately can't do the following:

  • Stop flood water from entering a house.
  • Prevent water leaks from happening.
  • Remove dampness if carpets or furniture are already severely water damaged.
  • Get rid of rising damp, or moisture that’s seeped into the foundations of a building.