Monaghan County Council’s Healthy Home Guide highlights the importance of managing heat, ventilation, condensation and dust to maintain a warm, dry and healthy living environment. Good ventilation—such as opening windows briefly each morning, using extractor fans in kitchens and bathrooms, and keeping wardrobes and cupboards from becoming overcrowded—helps prevent moisture buildup that leads to condensation and mould. The guide explains that everyday household activities can produce up to 17 litres of moisture daily, making it essential to heat all rooms consistently, avoid drying clothes on radiators, and remove any water gathering on windows. It also notes that dust can act as a food source for mould, so keeping surfaces clean and treating small patches early helps stop it spreading. Overall, the guide emphasises that preventing excess moisture and dust is the key to reducing mould and creating a healthier home.