What air purifiers can - and can't -do to help with mould

"If you've ever battled a damp corner or caught a whiff of musty air in your home, you'll know just how stubborn mould can be. It's a problem that thrives in cool, humid climates and one that many homeowners hope an air purifier can solve. But do air purifiers help with mould, really? While air purifiers promise cleaner, healthier air, their ability to help with mould will depend on what's actually causing the issue in the first place. Mould spores are tiny, airborne particles, and the right purifier can indeed trap and reduce them. But no gadget, however advanced, can replace the basics: tackling damp, improving ventilation, and keeping humidity under control."

""Indoor air is a complex mix of particles from dust and pollen to mould spores, bacteria and pet dander. Breathing in this fine dust or PM2.5 (also known as fine particulate matter) can penetrate deep into the lungs and cause irritation in the eyes, skin, nose, throat and lungs," explains Lars Dunberger, head of technology at Blueair. "Even if you have no underlying health issues, improved air quality is conducive to better productivity and a general sense of wellbeing.""

""The best air purifiers trap these microscopic particles - including mould spores - in the HEPA (High-Efficiency Particulate Air) filter," adds Chris Michael, CEO of Meaco. While HEPA filters don't kill mould spores, they can stop them from recirculating through the air, making a noticeabl"

Mould originates from airborne spores that settle on damp surfaces and thrives in cool, humid conditions. Air purifiers with HEPA filtration can trap microscopic particles, including mould spores, and reduce their recirculation in indoor air. HEPA filters do not kill spores, so trapped spores remain in filters and require proper maintenance and replacement. Effective mould control requires fixing sources of damp, improving ventilation, and keeping indoor humidity low alongside any use of air purifiers. Improved air quality can reduce irritation and support wellbeing but cannot substitute moisture management and structural repairs.

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