Ventilate properly in winter 2024: How to avoid mold and ensure fresh air

The importance of proper ventilation in winter

In the cold months, it is especially important to ventilate correctly for a healthy indoor climate and to prevent mold formation. Many people tend to keep windows tilted open during the colder season to let frischluft into the house. However, this is a misconception that can lead to several problems.

The issue of permanently tilted windows

Permanently tilted windows lead to a continuous loss of energy in winter, as warm indoor air constantly escapes outside and cold air flows in. This not only increases heating costs but also creates an uneven indoor climate. Additionally, the constant influx of moisture can promote mold growth, especially in corners and behind furniture where air circulation is restricted.

Drafting as an effective alternative

Unlike leaving the window ajar, drafting is a more efficient and healthier method. During drafting, the windows are fully opened for a few minutes to allow for quick air exchange. This effectively removes stale, humid air and brings in fresh, dry outside air. It is ideal to ventilate several times a day for about 5 to 10 minutes, especially after getting up, cooking, or showering.

Obstacles to drafting: Objects in front of the window

Decorations and plants on the windowsill can make drafting difficult. Often, the window is only tilted out of convenience, which is not enough to adequately renew the room air. This poor ventilation habit promotes moisture accumulation and thus mold formation.

The frischluft windowsill solves this problem