Dehumidifier vs. Air Purifier: Which One Helps More with Mould — or Do You Need Both?
Mould is every homeowner’s nightmare. While regular cleaning helps remove visible mould, stopping it from spreading through the air requires more than just surface-level solutions. That’s where dehumidifiers and air purifiers come into play — essential tools in the fight against indoor mould. But which one truly helps: a dehumidifier, an air purifier, or both? Let’s explore your best options. Why Is Mould So Common in Australia? Australia’s climate creates the ideal environment for mould growth. Common indoor mould species like Cladosporium , Penicillium , Aspergillus , Stachybotrys chartarum (black mould), and even pink-tinted Serratia marcescens thrive in humid, poorly ventilated spaces. Tropical and coastal regions — including parts of Northern Queensland, Sydney’s seaside suburbs, and areas of Melbourne — often deal with seasonal or persistent mould outbreaks. Modern, tightly sealed homes built for energy efficiency sometimes make things worse by trapping moisture inside, w...