Drying Clothes Indoors May Pose Serious Health Risks, Experts Warn
When it’s cold and rainy outside, drying clothes indoors may seem like a convenient option. Many people use drying racks or place laundry over radiators — unaware that this habit can lead to serious health issues.
Research shows that indoor drying can increase household humidity by up to 30%, creating ideal conditions for mould growth. One dangerous mould, aspergillus fumigatus, can release spores that pose risks to respiratory health.
“Moist environments encourage the growth of mould which can release spores,” says Pheena Kenny from the Asthma Society of Ireland. “For people with asthma, these spores can worsen symptoms.”
Professor David Denning from the National Aspergillosis Centre in Manchester explained to the Daily Mail that while healthy individuals can typically handle aspergillus exposure, it can be harmful — even life-threatening — to people with asthma or weakened immune systems.
The NHS describes aspergillosis as a condition that affects the lungs, causing coughing, fever, chest pain, and in severe cases, coughing up blood. Though not contagious, it primarily affects individuals with existing health conditions.
Craig Mather, a 43-year-old father of three from Bolton, was diagnosed with chronic pulmonary aspergillosis. A long-time asthma sufferer, he noticed his symptoms worsened when drying clothes indoors. After stopping the practice, his condition improved significantly.
Experts recommend keeping windows open during indoor drying or using a dehumidifier to reduce moisture levels.
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