We ranked the top dehumidifiers on Amazon.com.au across 20 critical factors. No sponsored placements.
Ranked by overall score · Amazon.com.au affiliate links
The Frigidaire 50-Pint Dehumidifier is the best all-round dehumidifier available for most homes. It removes 50 pints of moisture per day — sufficient for basements, living rooms, and large bedrooms up to 3,000 sq ft in high-humidity conditions. The built-in pump allows continuous drainage without manual emptying. The SpaceWise portable design with side handles and castor wheels makes repositioning easy. The Clean Air Ionizer and 24-hour timer round out a well-specified package at a competitive price. Energy Star certified. The best starting point for most buyers dealing with damp problems.
The Midea 50-Pint Smart Dehumidifier is the best connected dehumidifier available. The SmartDry app allows remote monitoring of humidity levels, scheduling, and operation from anywhere — particularly useful for basements or holiday homes that need periodic monitoring. The built-in pump provides continuous drainage. Humidity readout is accurate to ±5% RH, displayed on a clear front panel. Auto-restart after power outage. Energy Star certified. At $249, it is the best-value smart dehumidifier in this comparison.
The Hisense 70-Pint Dehumidifier is the best choice for severely damp basements, large open-plan areas, and spaces with persistent moisture problems. The 70-pint daily removal rate (DOE tested) handles the most demanding residential moisture conditions. The built-in pump allows upward drainage to a sink or outside — useful in basements without floor drains. Turbo mode maximises airflow for rapid initial dehumidification. Energy Star certified. At $329, the cost-per-pint is excellent for the capacity delivered.
The Eva-Dry Edv-1100 is the best small dehumidifier for bathrooms, closets, small bedrooms, and caravans. At 16 oz (473ml) daily moisture removal it is not designed for damp basements — it is engineered for spaces up to 1,100 cubic feet where relative humidity needs modest reduction. The thermoelectric (Peltier) cooling system has no compressor — it is completely silent and uses very little electricity. No continuous drainage — the 52 oz tank needs manual emptying. At $44, it is the most affordable and most portable product in this comparison.
The Aprilaire 1820 Pro is a whole-home ducted dehumidifier designed for professional installation into HVAC ductwork — it is not a portable unit. It removes 130 pints per day and covers up to 5,200 sq ft, handling moisture for the entire home from a single unit. The automatic digital humidity control maintains set-point humidity without manual adjustment. For homes with persistent whole-house humidity problems that portable units cannot adequately address, the Aprilaire 1820 is the correct solution — but it requires professional HVAC installation and a dedicated installation cost on top of the unit price.
The Tosot 30-Pint Dehumidifier is the best choice for medium-sized rooms (bedrooms, offices, single-floor apartments) that don't need the full capacity of a 50-pint unit. The 30-pint daily removal handles rooms up to 1,500 sq ft in moderate humidity conditions. Smart mode automatically adjusts operation based on current humidity levels, reducing energy use when conditions are already comfortable. Continuous drain connection and gravity drain outlet included. Energy Star certified. At $189, it is competitively priced for the mid-size category.
All six dehumidifiers side by side. Full comparison →
| Model | Price | Capacity | Coverage | Pump | WiFi | Energy Star | Buy |
|---|---|---|---|---|---|---|---|
| Frigidaire 50-Pint Dehumidifier FFAD5033W1 | AU$429 | 50 pints/day (DOE) — suitable for rooms up to 3,000 sq ft | Up to 3,000 sq ft in high humidity | Built-in pump for continuous drainage | 13.1 pints removable tank | Yes — certified | View on Amazon.com.au |
| Midea 50-Pint Smart Dehumidifier MAE50PS1BMS | AU$379 | 50 pints/day (DOE) | Up to 3,000 sq ft | Built-in pump | SmartDry app — remote monitoring and scheduling | Yes | View on Amazon.com.au |
| Hisense 70-Pint Dehumidifier DH7019KP1WG | AU$499 | 70 pints/day (DOE) — highest in this comparison | Up to 4,500 sq ft | Built-in pump — upward drainage capability | Yes — maximum airflow for rapid dehumidification | Yes | View on Amazon.com.au |
| Eva-Dry Edv-1100 Small Dehumidifier | AU$69 | 16 oz / 473ml per day | Up to 1,100 cubic feet | Thermoelectric (Peltier) — no compressor, silent | Completely silent (no moving parts in cooling system) | 52 oz / 1.5L removable tank | View on Amazon.com.au |
| Aprilaire 1820 Pro Dehumidifier | AU$1,999 | 130 pints/day — whole-home capacity | Up to 5,200 sq ft whole home | Ducted HVAC — professional installation required | Automatic digital humidity control | Continuous gravity drain — no manual emptying | View on Amazon.com.au |
| Tosot 30-Pint Dehumidifier | AU$289 | 30 pints/day (DOE) — rooms up to 1,500 sq ft | Up to 1,500 sq ft in moderate humidity | Gravity drain only (no pump) | Auto-adjusts based on current humidity | Yes | View on Amazon.com.au |
Five questions that narrow down the right dehumidifier.
Side sleepers need softer pressure relief at the shoulder — the Purple Restoring Premier and the Casper Wave Hybrid both target this. Back sleepers need firmer lumbar support — the Saatva Classic (Luxury Firm) and Tempur-Pedic Adapt Medium Hybrid excel here. Stomach sleepers need firm, flat support — the Saatva Classic (Firm) is the best choice.
Memory foam retains heat. The Nectar Premier Copper addresses this with copper-infused foam and gel layers. The Purple Restoring Premier is the best performer: the GelFlex Grid has open air channels that allow heat to escape. The Saatva Classic also sleeps cool due to airflow through the coil layers.
Motion isolation is the key factor for couples. The Tempur-Pedic Adapt Medium Hybrid and Nectar Premier Copper score very high here. The Saatva Classic transfers some motion through its coils, though the pocketed micro-coil top layer mitigates it. If one partner is a light sleeper, prioritise motion isolation over bounce.
Spinal alignment is the priority. The Tempur-Pedic TEMPUR-Adapt Medium Hybrid provides the most precise body contouring — TEMPUR material was originally developed for NASA pressure relief. The Saatva Classic (Luxury Firm) provides excellent lumbar support from its dual-coil system. Both are recommended by sleep specialists for back pain management.
The DreamCloud Premier Rest at $1,199 is the best entry point — hybrid construction, 365-night trial, lifetime warranty. The Nectar Premier Copper at $1,499 adds copper-infused heat management. Above $2,000, Tempur-Pedic and Purple use proprietary materials unavailable elsewhere. The Saatva Classic at $1,295 offers the most customisation at its price.
What size dehumidifier do I need?
The correct size depends on space size and moisture severity. 30 pints/day for spaces up to 1,500 sq ft with moderate humidity (condensation on windows, musty smell). 50 pints/day for spaces up to 3,000 sq ft or smaller spaces with more severe moisture (visible mould, wet walls). 70 pints/day for large basements over 2,000 sq ft with significant moisture. Note that DOE-rated capacities (post-2019) are lower and more accurate than older IEC ratings — a 50-pint DOE unit removes meaningfully less water than an old 70-pint IEC rating.
What humidity level should I set my dehumidifier to?
The EPA recommends maintaining indoor relative humidity between 30–50%. Below 30% causes dry skin, static electricity, and wood shrinkage. Above 50% encourages mould growth and dust mites. For most homes, setting the dehumidifier to 45–50% relative humidity is the right balance. In summer months or during wet weather, 50% may require continuous operation in damp spaces.
Do I need a built-in pump?
All compressor-based dehumidifiers collect water in a tank needing manual emptying — typically every 8–24 hours in high-humidity conditions. A built-in pump allows continuous drainage through a hose to a floor drain, sink, or outside, eliminating manual emptying entirely. For basements without convenient access, a pump is essential. The Frigidaire, Midea, and Hisense in this comparison all include built-in pumps.
Where should I place my dehumidifier?
Position the dehumidifier centrally in the problem space with at least 6–12 inches of clearance on all sides for airflow. In basements, place it away from walls and corners where cold surfaces may cause condensation on the unit itself. Ensure the drainage direction is practical — towards a floor drain, sink, or outside if using a continuous drain hose. A single centrally placed unit is generally more effective than two units in corners.
Will a dehumidifier help with mould?
A dehumidifier addresses the primary cause of mould growth — elevated humidity — but does not kill existing mould colonies. If mould is already visible, physical remediation (cleaning with anti-mould solution, removing affected materials) is required first. A dehumidifier then prevents recurrence by maintaining humidity below the 50–60% threshold at which most household mould species grow.