A dehumidifier pulls excess moisture out of the air, either by drawing it over a refrigerated coil (a compressor unit) or across a smaller electronic cooling plate (a semiconductor unit), then collecting the water in a removable tank or draining it away through a hose. The best dehumidifiers in Australia bring humidity down to a comfortable range in a bedroom, bathroom, laundry or garage, reducing the condensation and mould that build up in poorly ventilated rooms.
Three main types are sold in Australia: compressor dehumidifiers that pull the most litres per day and suit larger rooms and whole-home use, semiconductor (Peltier) dehumidifiers that run quieter and smaller but draw far less water, and combination units that add a HEPA air purifier alongside the dehumidifying function.
Extraction rate is the number worth checking first: compressor units in this guide pull between 25 and 50 litres a day, while compact semiconductor units manage closer to 300 to 1000 millilitres. Beyond extraction rate, the details that matter are tank size, noise level in sleep mode, and whether the unit drains continuously or needs the tank emptied by hand.
This guide compares ten dehumidifiers available in Australia, from whole-home compressor units to compact bedroom and wardrobe models, spanning budget and premium price points.
Quick Picks
Newentor Portable Dehumidifier 25L
25L/day compressor dehumidifier covering roughly 80 square metres.
CHECK CURRENT PRICE
Devanti 50L Day Dehumidifier
50L/day compressor unit, the highest extraction rate in this guide.
CHECK CURRENT PRICE
Devanti 30L Day Dehumidifier
30L/day compressor dehumidifier sized for living areas and larger bedrooms.
CHECK CURRENT PRICEThe Best Dehumidifiers in Australia Compared
| Product | Link | Type | Best For | Key Spec |
|---|---|---|---|---|
| Newentor Portable Dehumidifier 25L | Check price | Compressor | Best for Whole-Home Coverage | 25L/day, 80m2 |
| Devanti 50L Day Dehumidifier | Check price | Compressor | Best for Large Spaces | 50L/day |
| Devanti 30L Day Dehumidifier | Check price | Compressor | Best for Living Areas | 30L/day |
| Devanti Dehumidifier 2L Air Purifier | Check price | Semiconductor | Best 2-in-1 Air Purifier | 500-700ml/day |
| Devanti 2000ml Portable Dehumidifier | Check price | Semiconductor | Best for Bedrooms | ~1000ml/day |
| Devanti 1400ml Portable Dehumidifier | Check price | Semiconductor | Best Compact Pick | ~330ml/day |
| Devanti Dehumidifier 600ml Air Purifier | Check price | Semiconductor | Best Travel Size | ~250-300ml/day |
| Advwin Portable Dehumidifier with Air Purifier | Check price | Semiconductor | Best HEPA Filtration | ~800ml/day |
| Advwin 2000ml Dehumidifier Quiet 24H Timer | Check price | Semiconductor | Best Quiet Operation | ~800ml/day |
| AROVEC 10L Smart Dehumidifier | Check price | Compressor | Best Auto-Defrost Pick | 10L/day |
1. Newentor Dehumidifier – Best for Whole-Home Coverage

Newentor builds this unit around a compressor rated to pull 25 litres a day, backed by a compressor design shared with the brand’s other climate appliances. Triple noise reduction engineering keeps the unit usable in a living area rather than confined to a garage.
Coverage extends to roughly 80 square metres, enough for an open-plan living and dining area in one pass, and the tank empties through either the removable reservoir or a continuous drain hose for unattended runs. A 10-year warranty backs the compressor, longer than most appliances in this category.
Anyone tackling humidity across an entire living area rather than a single room gets the most from this unit’s extraction rate and coverage. A single bedroom or wardrobe is better served by one of the compact units further down this list instead.
Pros
- 25L/day extraction covers around 80m2
- Continuous drain hose option for unattended use
- 10-year compressor warranty
Cons
- Larger footprint than a bedroom-only unit
- Overkill for a single small room
Key specs: 25L/day · ~80m2 coverage · Compressor · Continuous drain option · 10-year warranty
CHECK CURRENT PRICE2. Devanti 50L Day Dehumidifier – Best for Large Spaces

This is the highest-capacity unit in the guide, built around an 8.5 litre tank and a compressor rated to pull 50 litres a day in ideal conditions. A 24-hour timer and smart touch panel keep the controls simple despite the larger build.
Sleep mode brings noise down to around 47 decibels or under, and a continuous drain hose handles overflow for rooms run unattended for long stretches. Castors on the base make it realistic to move between a garage, laundry and basement rather than leaving it fixed in one spot.
Garages, basements and larger laundries with a persistent damp problem are the target use case here, where a compact unit would empty its tank within hours. A single bedroom does not need this much extraction and would suit a smaller unit instead.
Pros
- 50L/day extraction, highest in this guide
- Sleep mode 47dB or under
- Castors for moving between rooms
Cons
- Large footprint for a single small room
- 8.5L tank needs frequent emptying without the drain hose connected
Key specs: 50L/day · 8.5L tank · Compressor · 24h timer · Sleep mode 47dB or under
CHECK CURRENT PRICE3. Devanti 30L Day Dehumidifier – Best for Living Areas

The 30 litre unit trims the tank to 4.7 litres and the extraction rate down from the 50L model above, while keeping a similar refrigerant compressor and four operating modes.
Sleep mode again holds noise to around 47 decibels or under, and castors carry over from the larger model for repositioning around a living area or bedroom. Real-world extraction drops to closer to 15 litres a day once humidity is already in a comfortable range, which is normal for compressor units generally.
A living area or larger bedroom with moderate humidity problems is the sweet spot for this unit, sized between the 50L unit above and the compact bedroom units further down the list. Households wanting the highest possible extraction rate should choose the 50L model instead.
Pros
- 30L/day extraction (15L/day at moderate humidity)
- R290 refrigerant compressor
- Castors for repositioning
Cons
- Lower extraction than the 50L model above
- 4.7L tank needs more frequent emptying without a drain hose
Key specs: 30L/day · 4.7L tank · R290 compressor · 4 modes · Sleep mode 47dB or under
CHECK CURRENT PRICE4. Devanti Dehumidifier 2L Air Purifier – Best 2-in-1 Air Purifier

This smaller Devanti model pairs a 2 litre tank with a photocatalyst air filter, positioning it as a combination unit rather than a pure dehumidifier.
Extraction sits around 500 to 700 millilitres a day, a fraction of the compressor units above, but the photocatalyst filter adds genuine air purification alongside moisture control. Noise stays under 30 decibels, quiet enough for an overnight bedroom run, and the remote plus LCD keep controls accessible from bed.
Bedrooms or small living rooms wanting light dehumidifying alongside basic air purification suit this unit best. A room with a genuine damp or mould problem needs one of the compressor units above instead, since this extraction rate won’t keep up.
Pros
- Photocatalyst air filter adds purification
- Under 30dB noise
- Remote control with LCD display
Cons
- 500-700ml/day extraction, far below the compressor units above
- Not suited to a genuinely damp room
Key specs: 500-700ml/day · Photocatalyst filter · Under 30dB · Remote + LCD · Up to 30m2
CHECK CURRENT PRICE5. Devanti 2000ml Portable Dehumidifier – Best for Bedrooms

This model drops the air-purifier filter from the entry above and focuses purely on dehumidifying, with a 2000 millilitre tank and roughly 1000 millilitre daily extraction.
Night mode holds noise to 30 decibels or under, and a seven-colour LED plus remote control make it easy to check and adjust without getting out of bed. A continuous drain option exists for anyone wanting to run it unattended over several days.
This suits a single bedroom or a caravan and RV setup wanting genuine moisture control rather than the light-duty extraction of the air-purifier combo above. Larger rooms or genuinely damp spaces will still need one of the compressor units earlier in this list.
Pros
- 1000ml/day extraction
- 30dB or under night mode
- Continuous drain option available
Cons
- No air purification, unlike the combo model above
- 2000ml tank fills faster than the compressor units
Key specs: ~1000ml/day · 2000ml tank · 30dB or under · Remote + 7-colour LED · Continuous drain option
CHECK CURRENT PRICE6. Devanti 1400ml Portable Dehumidifier – Best Compact Pick

The smallest Devanti tank in this guide runs a semiconductor (Peltier) mechanism rather than a compressor, trading extraction power for a smaller, quieter build.
Real extraction lands around 330 millilitres a day, noticeably less than the compressor units above, and an 8, 16 or 24 hour timer with auto shut-off covers most set-and-forget use. This is genuinely a wardrobe or small-closet unit rather than a room-sized dehumidifier.
A wardrobe, small ensuite or a single damp corner of a room is the realistic use case, not a bedroom-sized moisture problem. Anyone finding a room still feels damp after a few days should size up to one of the compressor units above instead.
Pros
- Smallest, most compact unit in this guide
- Simple 8/16/24-hour timer with auto shut-off
- Quiet semiconductor operation
Cons
- Only around 330ml/day extraction
- Not effective in a full-sized bedroom or living area
Key specs: ~330ml/day · 1400ml tank · Semiconductor (Peltier) · 8/16/24h timer · Auto shut-off
CHECK CURRENT PRICE7. Devanti Dehumidifier 600ml Air Purifier – Best Travel Size

This is the smallest and weakest unit in the guide, built around a 600 millilitre tank and a semiconductor mechanism paired with basic air purification.
Extraction lands around 250 to 300 millilitres a day, enough to notice in a car, single wardrobe or dorm room but not a genuine fix for a damp bedroom. Noise stays under 48 decibels, and the compact size makes it the most portable option here.
A car, dorm room or single wardrobe drawer is the honest use case for this unit, not a bedroom or living space. Buyers with an actual room-sized humidity problem should treat this as a travel companion to one of the larger units above, not a replacement for one.
Pros
- Most portable and compact unit in this guide
- Includes basic air purification
- Suits a car, dorm or single wardrobe
Cons
- Weakest extraction rate in this guide, around 250-300ml/day
- Not a realistic fix for a damp room
Key specs: ~250-300ml/day · 600ml tank · Semiconductor (Peltier) · Under 48dB · Air purification
CHECK CURRENT PRICE8. Advwin Portable Dehumidifier with Air Purifier – Best HEPA Filtration

Advwin pairs its dehumidifier with a genuine H13 HEPA filter and an anion generator, positioning this as the most air-quality-focused unit in the guide rather than a pure moisture appliance.
Extraction sits around 800 millilitres a day from a 1.6 litre tank, with auto-defrost rated between 5 and 38 degrees and a 24-hour timer for scheduled runs. An auto shutoff triggers once the tank is full, avoiding overflow if it’s left unattended.
Households more concerned with allergens and dust than a serious damp problem get the most value from the HEPA filtration here. A genuinely humid room is still better served by one of the higher-extraction compressor units earlier in this list.
Pros
- H13 HEPA filter plus anion generator
- Auto-defrost from 5 to 38 degrees
- Auto shutoff when the tank is full
Cons
- 800ml/day extraction is modest next to the compressor units above
- 1.6L tank needs regular emptying
Key specs: ~800ml/day · 1.6L tank · H13 HEPA + anion · Auto-defrost 5-38 degrees · 24h timer
CHECK CURRENT PRICE9. Advwin Dehumidifier Quiet – Best Quiet Operation

This second Advwin unit drops the HEPA filter from the model above in favour of a larger 2 litre tank and a stated focus on quiet running.
Extraction sits around 800 millilitres a day from a semiconductor mechanism, with noise rated at 50 decibels or under and a built-in night light for bedroom use. Coverage is rated to around 40 square metres, generous for a semiconductor unit of this size.
A bedroom or home office wanting quiet, set-and-forget operation without an air-purifier function suits this unit well. Anyone wanting HEPA filtration alongside the dehumidifying should choose the Advwin model above instead.
Pros
- Rated to around 40m2 coverage
- 50dB or under operation
- Built-in night light
Cons
- No air purification, unlike the Advwin model above
- Semiconductor extraction well below compressor units
Key specs: ~800ml/day · 2L tank · Semiconductor · ~40m2 coverage · 50dB or under · Night light
CHECK CURRENT PRICE10. AROVEC Smart Dehumidifier – Best Auto-Defrost Pick

AROVEC’s unit sits between the compact bedroom models and the large compressor units in this guide, rated to pull 10 litres a day from a 2.5 litre tank.
Three-stage filtration runs a mesh pre-filter, H13 HEPA and activated carbon ahead of the compressor, and auto-defrost plus memory auto-restart handle power interruptions without needing to reset the unit manually. Noise is rated at 42 decibels or under, and the brand markets the unit as designed in Australia.
A bedroom, home office or small living area wanting compressor-level extraction with air filtration built in gets solid value here. Larger rooms or a genuinely persistent damp problem will still extract faster with the Newentor or Devanti compressor units earlier in this list.
Pros
- 10L/day extraction with 3-stage filtration
- Auto-defrost and memory auto-restart
- 42dB or under operation
Cons
- Lower extraction than the 25L and 50L compressor units above
- Amazon reviews note some performance drop-off over time
Key specs: 10L/day · 2.5L tank · H13 HEPA + carbon filter · Auto-defrost · 42dB or under
CHECK ON AMAZONHow to Choose a Dehumidifier
Match extraction rate to room size, not house size. A single bedroom or wardrobe is well served by a compact 300 to 1000 millilitre unit, while a garage, whole home or a persistently damp laundry needs a compressor unit rated to at least 20 to 30 litres a day.
Compressor versus semiconductor changes the trade-off. Compressor units pull far more water and keep working in cooler rooms, while semiconductor units run quieter and smaller but extract a fraction of the moisture and struggle below around 15 degrees.
Check the tank size and drainage option. A larger tank means fewer trips to empty it, but a continuous drain hose matters more for anyone wanting to run a unit unattended over several days rather than checking it daily.
Noise matters most in a bedroom. A unit that drops to 30 decibels or under in sleep mode disappears into the background overnight, while a 47 decibel compressor unit is better suited to a living area, garage or laundry. Coastal Australian homes swinging between humid summers and dry winters sometimes run a dehumidifier for one season and a humidifier for the other.
Filtration adds value if air quality is also a concern. A combination unit with a HEPA filter suits households wanting to address dust and allergens alongside moisture, though a dedicated air purifier will filter more air per hour than the small fan built into most dehumidifiers.
Placement affects performance. A dehumidifier works best with clear airflow on at least two sides, placed in the room where the humidity problem is worst rather than a central hallway shared between several rooms.
Frequently Asked Questions
How many litres a day do I need from a dehumidifier?
A single bedroom or bathroom is usually well served by a compact 300 to 1000 millilitre semiconductor unit, while a garage, whole home or a persistently damp laundry needs a compressor unit rated to at least 20 to 30 litres a day.
What’s the difference between compressor and semiconductor dehumidifiers?
Compressor units use a refrigerated coil to pull far more moisture from the air and work well even in cooler rooms, while semiconductor (Peltier) units run quieter and smaller but extract a fraction of the water and struggle below around 15 degrees.
Do dehumidifiers need to drain into a hose?
Most household units collect water in a removable tank that needs manual emptying, though larger compressor models usually include a continuous drain hose option for unattended, longer-term use.
Is a dehumidifier with an air purifier worth it?
A combination unit is worth it for households wanting to address dust and allergens as well as moisture in one appliance, though a dedicated air purifier will filter more air per hour than the smaller fan built into most dehumidifiers.
How loud is a dehumidifier in sleep mode?
Most sleep or night modes bring compressor units down to around 47 decibels, comparable to a quiet conversation, while compact semiconductor units in this guide run at 30 decibels or under.
Where should a dehumidifier be placed in a room?
A dehumidifier works best placed away from walls and furniture with clear airflow on at least two sides, and in the room where the humidity problem is worst rather than a central hallway.
Verdict
Across ten dehumidifiers, the Newentor 25L compressor unit stands out for households wanting genuine whole-room coverage from a well-reviewed brand, while the Devanti 50L unit suits garages and larger basements needing the highest extraction rate in this guide. Buyers wanting a compact bedroom unit with built-in air purification should look to the Advwin HEPA model instead.









