Views: 1 Author: Site Editor Publish Time: 2025-06-06 Origin: Site
Using a dehumidifier for mold prevention in Australia is a smart move, especially in humid coastal areas like Queensland, NSW (especially Sydney), and parts of Victoria. Here's a focused guide to help you choose the right dehumidifier and use it effectively:
Warm, moist environments (like bathrooms, laundry rooms, or basements) are breeding grounds.
Poor ventilation in apartments or newer airtight homes traps moisture.
Mold can lead to respiratory issues, structural damage, and foul odours.
1. Ideal Humidity Level
Mold thrives above 60% humidity. Your goal is to maintain 45–55% indoors.
2. Dehumidifier Size (Litres/Day)
Ordinary homes: 30–60 L/day basement dehumidifier for mold
Medium spaces(offices, restaurants, underground parks): 60-90 L/day commericla dehumidifier for mold
Large buildings (shopping malls, factories, workshops, warehouses): 100-130 L/day heavy duty dehumidifier
Tip: Oversize slightly if the area is very damp, has poor ventilation, or is coastal.
3. Essential Features
Built-in humidistat: Automatically maintains target humidity.
Continuous drain option: Avoids the need to empty tanks.
HEPA filter or antibacterial filter: Extra protection against mold spores.
Timer & Auto-restart: Useful in energy-conscious households or during power cuts.
All widely available at Harvey Norman, Bunnings, or online:
Brand: | Good For: | Notes: |
Ausclimate | Australian climate, high humidity | Highly rated, reliable service |
DeLonghi | Quiet, energy-efficient homes | Stylish, low-noise |
Preair ALGR | Medium to large spaces, restoration-type | Smart features, premium build |
Preair WH | Whole-home, fresh air, allergy-friendly | Models with MERV filters |
Mitsubishi Electric | High performance | Higher cost, very efficient |
QLD / Northern NSW: High humidity = larger capacity, refrigerant type.
Southern states (VIC, TAS): Cooler = consider models that still work in low temperatures (5–15°C), such as desiccant dehumidifiers.
WA / SA (drier areas): May only need seasonal or room-specific use.
Ventilate during daytime when possible (open windows, fans).
Use in bathrooms after showers, laundries, and bedrooms overnight.
Monitor with a digital hygrometer to know when to run the unit.
Clean filters regularly to keep it effective.
