Keeping the air clean with windows closed is entirely possible if you take the right steps. As autumn arrives, windows are opened less often and rooms become more prone to humidity and stagnant air. These are ideal conditions for mould to develop, which can damage walls and furniture and affect respiratory health.
The first step to preventing the problem is to ensure good air circulation, even during the cold months. Just a few minutes of controlled ventilation each day is enough to reduce moisture build-up.
Dehumidifiers like the Ariston Deos Evo 12 are a key tool: they keep relative humidity below 60%, the threshold at which mould and bacteria struggle to thrive.
Other important habits: avoid drying laundry indoors without a dehumidifier, use extraction fans in the kitchen and bathroom where possible, ventilate after showers and while cooking, and regularly check problem areas like corners and spaces behind furniture.
Closing the windows does not mean giving up healthy air. With the right habits and the right technology, the cold months can be spent in a comfortable and mould-free environment.