The best dehumidifier in NZ for most homes is the Midea FreshDry (MDDQ12), thanks to its mix of 12L/day moisture removal, built-in HEPA air filtering and Wi-Fi control in a compact, movable unit. For larger or very damp homes, the 50L Midea MDDP50 with a built-in pump is the stronger pick.
New Zealand’s damp climate makes excess household moisture an ongoing battle — from mould and mildew to stuffiness and musty odours, high humidity causes real problems. A dehumidifier draws in moist air, condenses the moisture out, and returns drier air to the room, helping regulate humidity for a healthier, more comfortable home. Damp homes also battle window condensation, which a window vacuum clears fast — see the best window vacuums.
Below are 13 dehumidifiers readily available to Kiwi households, from compact units for apartments to high-capacity models for damp basements and whole floors. Each entry covers what it is like to actually live with, who it suits, and where to buy it.
The Best Dehumidifiers in NZ — reviewed
1. Midea FreshDry Dehumidifier (MDDQ12, HEPA + Wi-Fi)
Best overall for everyday NZ homes: A compact 12L/day unit that pairs real moisture removal with HEPA air cleaning and app control — the pick most Kiwi households should start with.
The FreshDry is built around a tall, slim casing that sits happily in a hallway, bedroom or living-room corner without dominating the floor. At roughly 12 kg it is light enough to shift between rooms by its top handle, and the white finish with a simple top-mounted control strip reads tidy rather than industrial.
Day to day, it pulls up to 12 litres from the air over 24 hours and stores it in a 1.6-litre tank, so in a damp NZ winter the tank fills fast — owners who do not plumb in continuous drainage should expect to empty it daily. The trade-off for that smaller tank is the size: it tucks away where larger 50L units cannot. The integrated HEPA filter is the standout, doubling the unit as a basic air purifier that traps dust and allergens while it dries the room, and the Wi-Fi link lets you start it, set a target humidity and schedule cycles from your phone before you get home.
A dedicated laundry mode runs the fan harder to dry washing indoors on wet days, and the quiet operation suits bedrooms. It is rated for spaces up to about 35 m²; push it into a large open-plan living area and it will work but slowly.
Pro — HEPA filtration plus dehumidifying in one tidy, movable unit.
Pro — Wi-Fi / app scheduling and a genuinely quiet running note.
Pro — Compact footprint that fits small NZ rooms and hallways.
Watch — 1.6 L tank fills quickly in very damp conditions — best plumbed for continuous drainage.
Watch — 12 L/day is modest for large open-plan spaces.
Key specs: 12 L/day extraction; 1.6 L tank; HEPA filter; Wi-Fi app control; laundry mode; ~35 m² coverage; ~12 kg.
2. Devanti 20L Dehumidifier
Best for whole-home damp and winter laundry : The best pick in NZ for tackling serious household damp is the Devanti 20L Dehumidifier, a 3-in-1 unit that dehumidifies, runs as a fan, and dries clothes across spaces up to 195㎡.
This is a full-size, floor-standing compressor unit rather than a benchtop gadget, so it suits a living room, a damp hallway, or a laundry running a drying load through a Wellington winter. Built-in handles and a set of casters mean it rolls room to room instead of being lugged, which matters once the 6.5L tank fills. The casing is white ABS plastic with a soft-touch control panel and a 3-colour light that shifts to signal the current humidity level at a glance — handy for knowing whether the room is still damp without reading a number.
Day to day, testers will appreciate the 24-hour programmable timer and power-failure memory, so settings survive an outage and the unit can be set and forgotten overnight. Two drainage options (the 6.5L tank or continuous drainage via the included 60cm pipe) plus overflow protection make it practical for long unattended runs. Performance is rated at 20L/day at 30°C/80% humidity, with two fan speeds.
The trade-offs: that 20L/day figure is measured in warm, very humid conditions, so real winter extraction will be lower; at 420W it draws more power than a compact unit; and it’s bulky to store off-season.
Pros: large 195㎡ coverage; 6.5L tank plus continuous drainage; casters and handles; timer and power-failure memory.
Cons: 20L/day is a best-case rating; 420W running cost; bulky to store.
Key specs: 20L/day (30°C/80%) · 6.5L tank · 420W · AC220–240V · ABS · 1–24hr timer · 2 fan speeds · 1-year warranty.
3. Midea 20L/Day Dehumidifier (MDDF20, 3L Tank)
Best for medium rooms and damp bedrooms: A quiet, no-nonsense 20L/day compressor unit that covers most single-storey living areas and master bedrooms.
Measuring 350 x 245 x 510 mm, the MDDF20 is a neat freestanding box that sits flat against a wall, finished in plain white with an electronic control pad and a clear LED display across the top. It is the size most people picture when they think ‘home dehumidifier’ — substantial but not awkward to move room to room.
Midea has tuned this one for quiet running: it uses a reciprocating compressor chosen to cut vibration, so it hums rather than rattles, which matters if it is going in a bedroom overnight. It removes up to 20 litres a day at 30°C/80% humidity (around 10 litres in cooler 27°C/60% conditions, which is more typical of a NZ shoulder season) and holds it in a 3-litre tank. Smart Dehumidification holds the room in a comfortable 45–55% band automatically, and auto-restart brings it back with the same settings after a power cut — handy during winter outages.
It is rated for roughly 37–52 m², so it comfortably handles a lounge or large bedroom. The main limitation is the tank: 3 litres is mid-sized, so in very wet rooms you will still empty it regularly unless you run the drain hose. Note TSB lists this model as delivery-only (dispatched from the distributor).
Pro — Low-noise compressor suited to bedrooms.
Pro — Smart auto-humidity control and auto-restart after outages.
Pro — Strong coverage for medium NZ living spaces.
Watch — 3 L tank needs regular emptying in very damp rooms.
Watch — Delivery-only — no in-store collection.
Key specs: 20 L/day (30°C/80%); 3 L tank; 37–52 m²; 24-hour timer; electronic control + LED; auto-restart; 12-month warranty; 350 x 245 x 510 mm.
4. Midea 50L/Day Dehumidifier (MDDP50, 6L Tank)
Best for whole-floor and very damp homes: A high-capacity unit with a built-in pump and 6L tank for large, persistently damp NZ houses, basements and garages.
This is the heavy hitter of the range. At 392 x 282 x 616 mm it is noticeably taller and broader than the 20L model, and it is built to stand in one spot and work hard rather than be carried about. The plain white cabinet keeps a simple electronic panel and LED display up top, with a 6-litre tank that swallows far more water before it needs attention.
Where it earns its place is capacity and drainage. It extracts up to 50 litres a day in warm, humid conditions (about 28.5 litres at a cooler 27°C/60%), enough for an application area Midea rates at 101–116 m² — effectively a whole floor of a damp villa, a basement or a workshop. Crucially it includes pump drainage, so it can push condensate up and out to a drain or outdoors continuously, meaning you may never touch the tank. Auto-defrost keeps it working in cold conditions where cheaper compressors freeze up, overflow protection cuts power if the tank fills, and an on/off timer lets you run it on cheaper overnight power.
The trade-offs are size, running cost and noise: a 50L compressor uses real power and is not whisper-quiet, so it suits utility spaces and large living areas more than a small bedroom.
Pro — Huge 50 L/day capacity for whole-floor or basement damp.
Pro — Built-in pump for continuous, hands-off drainage.
Pro — Auto-defrost keeps it effective in cold NZ conditions.
Watch — Large and heavier — meant to stay put, not move daily.
Watch — Higher power draw and more audible than compact units.
Key specs: 50 L/day (30°C/80%); 28.5 L/day (27°C/60%); 6 L tank; 101–116 m²; pump drainage; auto-defrost; overflow protection; 24-hour timer; 392 x 282 x 616 mm.
5. Portable Dehumidifier with 1L Tank
The best small-space option is this compact black portable dehumidifier — a quiet, near-silent thermoelectric unit built for bedrooms, wardrobes, and other tight rooms rather than whole-home damp.
At just 15.4 × 15.4 × 25cm and 1.35kg, it’s a slim tower that sits on a shelf or bedside without dominating the room, finished in matte black ABS. Instead of a noisy compressor it uses energy-saving semiconductor (thermoelectric) technology, paired with a sound-absorbing air duct, so it runs quietly enough to leave on overnight. A nice touch is the 8-colour ambient light built into the clear water tank: press the panel button to cycle the colours and lock a favourite, and it switches off automatically in sleep mode so it won’t keep light sleepers awake.
In use there are three modes — Smart for everyday running, Continuous for very humid spells, and Sleep for nighttime — plus a 25-hour timer for automatic on/off. A built-in air filter helps cut dust and odours, and the unit shuts off safely once the 1L tank is full, so it won’t overflow if left unattended.
The trade-offs are real: thermoelectric units extract only a small amount — the maker quotes up to roughly 300ml per day — so this is strictly for small, enclosed spaces, not a damp living room. (The listing’s “3 L/h” title is at odds with that stated daily figure, so treat coverage as small-room only.) The 1L tank also needs regular emptying.
Pros: very quiet; compact and light; sleep mode with auto-off light; 1L auto-shutoff tank.
Cons: low extraction (~300ml/day); small-space only; frequent tank emptying.
Key specs: ~300ml/day · 1L tank · semiconductor (thermoelectric) · 3 modes · 25hr timer · air filter · 15.4×15.4×25cm · 1.35kg · black ABS.
6. Panasonic Dehumidifier
Best for reliable mid-size performance: A dependable 17L/day unit with a large tank and a trusted name, ideal for busy family homes.
Panasonic’s 17L/day model is a solid all-rounder finished as a clean freestanding unit with a clear front control panel. The headline feature for families is the generous 4.8-litre tank — among the largest here — which means noticeably fewer trips to the laundry to empty it compared with the compact units.
It is engineered specifically to combat mould growth, which is the main reason most NZ households buy a dehumidifier in the first place. An auto-dehumidify mode adjusts to your chosen humidity setting, the front panel allows fine-tuning, and a laundry drying mode doubles it up as a wet-weather clothes dryer. A flexible 2/4/8-hour timer suits different routines, and for larger homes Panasonic offers a bigger 33L capacity model in the same family.
The main consideration is that, like all compressor units, efficiency drops in cold rooms, and the brand premium means it usually costs more than equivalent-capacity budget units. For buyers who want a known, well-supported brand with a big tank, it is an easy recommendation.
Pro — Large 4.8 L tank means less frequent emptying.
Pro — Trusted brand with mould-focused design and laundry mode.
Pro — Step-up 33L model available for bigger homes.
Watch — Compressor efficiency drops in cold rooms.
Watch — Brand premium over budget equivalents.
Key specs: 17 L/day; 4.8 L tank; auto-dehumidify mode; laundry drying mode; 2/4/8-hour timer; 33L option available.
7. Fraser Country Mini Dehumidifier
Best for wardrobes and small spaces: A compact, affordable mini unit for tackling damp in closets, bathrooms and caravans.
The Fraser Country mini is the pick for small, enclosed spaces rather than whole rooms. It is a compact benchtop-sized unit that fits a wardrobe, ensuite, pantry or caravan, and its low price makes it an easy first step against condensation and musty odours in problem corners.
Despite the size it has a usefully sized tank for sustained running, and an auto shut-off mechanism stops it overflowing and provides peace of mind if you forget about it. By keeping a small space dry it directly tackles mould and the musty smell that comes with it, and reduces the damp-related irritation to skin and airways that can come from sleeping in a humid room. Simple 4 and 8-hour timer controls let you match it to your daily routine.
The honest limitation is capacity: a mini unit like this cannot dry a living room or a very damp bedroom — push it beyond a small enclosed space and it will struggle, and the small tank needs emptying often. Within its niche, it is a tidy, low-cost solution.
Pro — Compact and cheap for closets, bathrooms and caravans.
Pro — Auto shut-off prevents overflow.
Pro — Simple 4/8-hour timer operation.
Watch — Not suitable for whole rooms or very damp spaces.
Watch — Small tank needs frequent emptying.
Key specs: Mini/compact type; auto shut-off; 4 and 8-hour timers; designed for small enclosed spaces.
8. Philips 2-in-1 Air – DE5205
Best 2-in-1 dehumidifier and air purifier: A stylish unit that both dries and purifies the air, suited to allergy-prone households.
The Philips DE5205 leans on dual functionality: it is a dehumidifier and an air purifier in one. The design is a clear cut above the plain white boxes — a sleek white body with a metallic black touch-control panel and a durable plastic shell that looks at home in a living room rather than a laundry.
It is genuinely easy to live with thanks to a digital humidity sensor and automatic control that holds a pre-set target anywhere from 40% to 80%. A special dry-laundry mode speeds up indoor clothes drying, while a continuous-dry mode keeps the environment stable and works to filter pollutants and allergens — the reason it appeals to hay-fever and asthma households. Five fan speeds let you trade speed against quiet, an airlock makes filter replacement painless, and an alert tells you when the tank is full.
The trade-offs: combination units cost more than a plain dehumidifier of similar extraction, and the purifying filters are a consumable you will replace over time. For buyers who want cleaner as well as drier air from a single tidy appliance, it is a strong choice.
Pro — True 2-in-1: dehumidifies and purifies the air.
Pro — Smart auto humidity control (40–80%) and five fan speeds.
Pro — Attractive design with easy filter access.
Watch — Costs more than a plain dehumidifier of similar capacity.
Watch — Purifying filters are an ongoing replacement cost.
Key specs: Dehumidifier + air purifier; auto control 40–80% RH; 5 fan speeds; dry-laundry and continuous-dry modes; tank-full alert; white with black touch panel.
9. Dimplex GDDE25E
Best for large rooms on a budget: A 25L/day unit with strong moisture removal and continuous drainage at a sensible price.
The Dimplex GDDE25E is a freestanding unit in an understated grey-and-white finish that blends into most rooms. It is one of the higher-capacity picks in the list, pairing a 25 L/day moisture-removal rate with a 3.5-litre tank and a tank-full indicator so you are never caught out.
Operation is handled through an electronic panel with a digital display and adjustable humidity from 30% to 80% RH. Three pre-set modes — continuous, living room and bedroom — tailor it to the space, and at a rated 350 W it stays reasonably efficient for the output. A 24-hour timer helps manage running costs, while auto-defrost lets it keep working in cooler conditions, continuous drainage allows hands-off operation, and a filter-wash reminder keeps performance up. At 53 dB(A) it sits at moderate ambient-noise level — present but not intrusive.
The main caveat is that 53 dB is louder than the quietest desiccant and compact units here, so it is better suited to living areas and laundries than a light sleeper’s bedroom. For drying a large, damp room affordably, it punches above its price.
Pro — High 25 L/day output for large rooms at a fair price.
Pro — Three modes, continuous drainage and auto-defrost.
Pro — Clear digital display with filter reminder.
Watch — 53 dB(A) is a touch loud for sensitive sleepers.
Watch — 3.5 L tank still needs emptying without the drain hose.
Key specs: 25 L/day; 3.5 L tank; 30–80% RH; 3 modes; 350 W; 24-hour timer; auto-defrost; continuous drainage; 53 dB(A); grey/white finish.
10. Ausclimate Dehumidifier
Best for master bedrooms and medium rooms: A well-rounded 20L/day unit with caster wheels and full electronic control for everyday damp.
The Ausclimate medium-room unit is sized for the rooms most Kiwis actually need to dry — up to about 30 m² (75 m³), such as a master bedroom or average lounge — without being bulky or obtrusive. It is a tidy freestanding box with fully electronic controls and a clear LCD display that makes setting humidity straightforward.
It removes up to 20 litres of moisture over 24 hours into a mid-sized 3.5-litre tank. Practicality is the theme: an auto-restart function brings it back after a power failure with the same settings, automatic shut-off triggers when the tank is full, and it runs dual fan speeds so you can trade airflow for quiet. Auto-defrost extends its usefulness into low-temperature conditions, and — a detail the compact units lack — it rides on sturdy caster wheels with carry handles, so moving it between rooms is genuinely easy.
The trade-off is that, as a 20L compressor unit, it is best in medium spaces rather than whole floors, and the 3.5-litre tank will need regular emptying in very wet rooms. For a movable, fuss-free everyday dehumidifier, it ticks the important boxes.
Pro — Caster wheels and handles make it easy to move.
Pro — Auto-restart, auto shut-off and dual fan speeds.
Pro — LCD control and auto-defrost for cooler rooms.
Watch — 20 L/day suits medium rooms, not whole floors.
Watch — 3.5 L tank needs regular emptying.
Key specs: 20 L/day; 3.5 L tank; up to 30 m² / 75 m³; electronic LCD control; dual fan speeds; auto-restart; auto shut-off; auto-defrost; caster wheels + handles.
11. Delonghi AriaDry Pure
Best for fast laundry drying: A capable unit with a dedicated dry mode that speeds up indoor washing on wet days.
The De’Longhi AriaDry Pure is aimed at the very NZ problem of drying laundry indoors through a wet winter. It is a clean freestanding unit with an interactive display that lets you cycle through humidity settings from a very dry 30% up to a more humid 70%, so you can match it to the room and the season.
Setup is simple — position it, press the on/off button, then the dehumidification button — and from there the standout is its dedicated dry mode, which runs at full capacity to speed laundry drying by up to 50% compared with air drying alone. An adjustable louvre and selectable ventilation speeds let you direct and circulate dry air around the room so washing dries more evenly. Beyond laundry, it does the core work of reducing mould risk, furniture damage, kitchen condensation and bathroom damp.
The main thing to check before buying is the exact extraction rate and tank size for the specific AriaDry Pure variant you are looking at, as De’Longhi sells several capacities — confirm the model suits your room size. As a laundry-drying and general damp-control unit from a well-known brand, it is a comfortable choice.
Pro — Dedicated dry mode cuts indoor laundry drying time markedly.
Pro — Adjustable louvre and ventilation speeds for even airflow.
Pro — Wide 30–70% humidity control from a trusted brand.
Watch — Confirm the exact capacity/tank of the variant before buying.
Watch — Compressor efficiency drops in cold rooms.
Key specs: Adjustable humidity 30–70%; dedicated laundry dry mode (up to 50% faster); adjustable louvre; selectable ventilation speeds.
12. Goldair Dehumidifier
The Goldair desiccant unit is a flexible, low-maintenance choice that keeps humidity in check in small to medium rooms. Because it is a desiccant model, it works across a wide 0–35°C range, so it stays effective in cold rooms and through the depths of a Kiwi winter when compressor units lose efficiency — a genuine advantage for unheated bedrooms and sleep-outs.
It actively works against the bacteria and mould that thrive in cold, damp months, and by drying out a room it can make heating that space a little more efficient and comfortable. The design keeps things simple: an intelligent automatic shut-off avoids energy waste and adds a layer of overnight safety, a 2.0-litre tank handles everyday collection, automatic defrost keeps it running in the cold, and a self-regulating humidistat means it largely looks after itself once set.
The trade-offs are familiar to desiccant units: the 2.0-litre tank is on the small side so it needs emptying fairly often, and desiccant operation uses more energy per litre than a compressor in warm, humid conditions. As an affordable cold-weather specialist, it is hard to fault.
Pro — Works in cold rooms across a 0–35°C range.
Pro — Self-regulating humidistat and auto shut-off for hands-off use.
Pro — Affordable and low-maintenance.
Watch — 2.0 L tank needs emptying fairly often.
Watch — Higher energy use per litre than a compressor in warm conditions.
Key specs: Desiccant type; operating range 0–35°C; 2.0 L tank; automatic shut-off; auto-defrost; self-regulating humidistat.
14. Mitsubishi Electric Oasis Slimline
Best premium quiet operation: A slim, whisper-quiet 16L/day unit with seven modes and a purifying filter for buyers who want the best build.
The Mitsubishi Electric Oasis Slimline is the premium pick, and it looks and feels it — a slim cabinet designed to slip into tight spaces, topped with an intuitive one-touch control panel. It manages moisture expertly, extracting up to 16 litres a day into a 4-litre tank, one of the larger tanks here relative to its slim footprint.
What sets it apart is breadth and refinement. Seven operational modes cover different needs, and it performs notably well in lower temperatures where many compressors fade. A washable air-purifying filter and a mildew guard back up its focus on a healthier room, while a laundry-drying mode with a 12-hour timer makes it a wet-weather workhorse. Above all it is genuinely quiet — its whisper-quiet running is the reason buyers pay the premium, as it will not disturb sleep or a home office, and an adjustable 1–9 hour timer gives precise control.
The obvious trade-off is price: this is one of the more expensive units in the guide, and at 16 L/day its raw extraction is lower than the big Dimplex or the 50L Midea. For a quiet, beautifully made unit that handles bedrooms and living areas with ease, though, it is the connoisseur’s choice.
Pro — Genuinely whisper-quiet — ideal for bedrooms and offices.
Pro — Seven modes, washable purifying filter and mildew guard.
Pro — Slim premium build with a large 4 L tank.
Watch — One of the pricier units here.
Watch — 16 L/day output trails the highest-capacity picks.
Key specs: 16 L/day; 4 L tank; one-touch control; 7 modes; washable air-purifying filter + mildew guard; laundry mode with 12-hour timer; 1–9 hour timer; slim design.
How to choose the best dehumidifier for you
Match the type to your rooms
Compressor (refrigerant) units are the most common and most cost-effective for removing large amounts of moisture, and work best in warmer, more humid conditions — ideal for living areas in milder parts of NZ. Desiccant units (like the Smart Ape and Goldair here) keep working in cold rooms where compressors lose efficiency, making them better for unheated bedrooms, sleep-outs and garages, though they use more energy per litre in warm conditions. Mini units suit only small enclosed spaces like wardrobes and bathrooms. For genuinely cold, damp rooms, running one alongside a good heater works best — compare the best heaters in NZ.
Size it to the space and dampness
As a rough guide: mildly damp rooms up to 50 m² need around 10–12 L/day; moderately damp rooms 14–18 L/day; and very damp spaces 20–25 L/day, scaling up for larger areas. Bathrooms, kitchens and laundries run more humid, and indoor clothes drying or a full household adds moisture load — size up if in doubt. If wet-weather laundry is the main moisture source, a dryer shares the load — see the best tumble dryers in NZ.
Features that matter
- Tank size and continuous drainage — bigger tanks (or a drain hose / pump) mean less emptying.
- Humidistat and auto modes — hold a set humidity (30–50% is ideal) automatically.
- Laundry / dry mode — speeds up indoor washing on wet days.
- Noise level — check dB(A) if it is going in a bedroom; desiccant and premium units tend to be quietest.
- Air filtration — HEPA or washable filters add air-purifying to the dehumidifying.
- Portability — caster wheels and handles help if you move it between rooms.
FAQs
Which type of dehumidifier is most efficient?
Desiccant dehumidifiers are highly efficient in colder climates, while compressor-based dehumidifiers are more efficient for high humidity and warmer temperatures. For most NZ living areas a compressor unit is the better value; for cold, unheated rooms choose desiccant.
What size dehumidifier do I need in NZ?
For a mildly damp room up to 50 m² aim for 10–12 L/day; for moderately damp spaces 14–18 L/day; and for very damp rooms or whole floors 20–50 L/day. Size up if you dry laundry indoors or have a large household.
How do I maintain a dehumidifier?
Regularly clean or replace the filters, empty the water tank (or use continuous drainage), keep the air vents clear, and periodically wipe the interior to prevent build-up.
Do dehumidifiers stop mould?
Dehumidifiers help prevent mould by keeping humidity low, but they do not kill mould that is already there. Maintain 30–50% relative humidity to keep mould from returning.
Is it better to run a dehumidifier at night or day?
Running it during the day is often better because humidity tends to be higher and you avoid noise at night — though quiet units like the Mitsubishi Oasis Slimline are fine to run overnight in a bedroom.
For most NZ homes, the Midea FreshDry (MDDQ12) is the best all-round dehumidifier — compact, quiet, app-controlled and with HEPA filtering built in. Step up to the 50L Midea MDDP50 for whole-floor or basement damp, drop to the 12L MDDO12 to save money, or choose a desiccant unit like the Smart Ape or Goldair for cold rooms. Match the type and capacity to your space and you will keep mould, musty air and damp at bay through any Kiwi winter.