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Australia's Dehumidifier Hub

Everything You Need to
Know About Dehumidifiers

Expert guides, honest reviews & side-by-side comparisons so you buy the right one, first time.

 

Best Picks

Best Dehumidifier Guides

By Problem

Dehumidifiers By Problem

01

Mould & Mildew

High-capacity units that drop humidity fast enough to starve mould spores.

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02

Condensation

Persistent window or wall dampness solved with the right capacity unit.

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03

Wet Laundry

Laundry modes, high airflow & large tanks make all the difference.

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04

Cold Climates

Compressors lose efficiency below 15°C. Desiccants work year-round.

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By Problem

Dehumidifiers By Problem

Bedroom

Ultra-quiet picks

Bathroom

Compact & moisture-proof

Laundry

High-airflow units

Living Room

Large-area coverage

Basement

Heavy-duty models

Garage

Rugged & portable

By Problem

Dehumidifiers By Problem

Type Best For Works in Cold? Energy Use Noise Level
Compressor Warm/humid climates No Low–Medium Moderate
Desiccant Cold climates, bedrooms Yes Medium–High Quiet
Peltier (Mini) Small spaces, wardrobes Yes Very Low Silent
Whole-Home Full house / ducted Yes Variable Low (hidden)
Tested & Rated

Product Reviews

Beginner Guide

Compressor vs Desiccant

  • Compressor

  • Great above 15°C
  • Lower running costs
  • High water extraction
  • Ideal for QLD, NSW, VIC

VS

  • Desiccant

  • Works below 15°C
  • Quieter operation
  • Lighter & portable
  • Ideal for TAS, winter use
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FAQ

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A rough rule: 10–12L/day for a single damp room, 20–25L/day for larger homes or severe dampness. Our buying guides factor in room size, climate and the specific problem to give exact recommendations.
 
For most of Australia (QLD, NSW, VIC summers), a compressor is more efficient and cheaper to run. Desiccants are better for year-round use in cold climates like Tasmania or alpine areas.
 
A dehumidifier prevents mould by keeping humidity below 50–55%, which starves mould of the moisture it needs to grow. It won’t remove existing mould — that needs cleaning first — but it stops it coming back.
 
In the centre of the room is ideal. Keep it at least 30cm from walls for good airflow. In a multi-storey home, prioritise lower floors as moisture rises. Close doors and windows for best results.
 
It depends on how damp your space is. In very humid conditions, a 2L tank can fill in a few hours. Most units have an auto-shutoff. Running a continuous drain hose to a sink eliminates the need to empty manually.