Mould and condensation are not just winter problems. In summer, high indoor humidity, especially in poorly ventilated or north-facing rooms, can be equally damaging to your health and your home. The right dehumidification strategy makes a real difference.
Summer humidity: an underestimated problem
On hot, muggy days, relative humidity frequently exceeds 70%. Unlike in winter, when moisture tends to concentrate on cold surfaces, summer humidity spreads evenly throughout the home. The result is heavy, stale air and, in persistent cases, mould growth on walls, tiles and window glass.
The rooms most affected are bathrooms, kitchens, basements and bedrooms with little sun exposure. In these spaces, humid air condenses on cooler surfaces and creates ideal conditions for fungal and bacterial growth.
Why dehumidify in summer
Maintaining indoor humidity between 40% and 60% makes the air feel noticeably fresher, even at the same temperature. Drier air means you can run your air conditioner less often, or set it a degree or two higher, cutting energy costs. You also protect wooden furniture, books and fabrics from moisture damage and improve air quality, particularly for allergy and asthma sufferers.
Choosing the right dehumidifier
For small to medium-sized rooms, the Ariston DEOS EVO 12, available from Clima Convenienza, is a practical and efficient choice. Compact and easy to move between rooms, it removes up to 12 litres of water per day and uses the eco-friendly refrigerant R290. It works well in bedrooms, kitchens and bathrooms up to around 25 m².
For larger or particularly damp spaces, the Deos 30 from the same Ariston range offers higher capacity, suitable even for basements with persistent moisture issues.
Ventilation and good habits
Alongside a dehumidifier, these everyday steps help keep condensation and mould at bay:
- Ventilate rooms regularly, especially after showering or cooking.
- Use extractor fans and range hoods in bathrooms and kitchens consistently.
- Avoid drying laundry indoors, particularly in rooms with poor air circulation.
- Check windows and external walls for thermal bridges where moisture tends to condense.
Summer humidity is a real problem that is often overlooked. With a good dehumidifier like the Ariston DEOS EVO 12 or Deos 30, plus a few simple habits, you can keep your home dry, fresh and healthy even during the hottest months of the year.