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Correct humidity for a healthy indoor climate

May 19, 2026 | From the editors

Indoor air pollution can lead to various health problems, such as allergies, respiratory problems, and even chronic illnesses. Creating an optimal indoor climate requires attention to several factors, including humidity, temperature, ventilation, and air quality.

The ideal humidity level is between 40% and 60%. Too much humidity can promote mold growth, while too little can lead to dry air, which can cause discomfort and health problems. Using a humidifier can help maintain the desired humidity level.

The temperature in your indoor space should be comfortable, typically between 20°C and 22°C. It's crucial to prevent both overheating and hypothermia, which can lead to fatigue and difficulty concentrating. Using thermostats and smart heating systems can help maintain a consistent temperature.

Ventilation plays a role in improving air quality. Regular ventilation helps remove polluted air and allow fresh air in. Implementing mechanical ventilation systems, such as balanced ventilation, can significantly improve air quality and reduce the risk of health problems.

When striving for a healthy indoor climate, it's crucial to consider these factors. By actively optimizing humidity, temperature, and ventilation, you can create an environment that not only promotes health but also supports the well-being of all building users.