A healthy indoor climate goes beyond "a nice warm room". It is about a combination of temperature, humidity, fresh air and clean air. If one of these factors is out of balance, you often only notice it when there are already complaints: a headache, a stuffy feeling or a musty smell in the house.
The four building blocks of a healthy indoor climate
Temperature
Most people feel comfortable at a temperature between 19 and 21 degrees in the living room and slightly lower, around 16 to 18 degrees, in the bedroom. Too warm feels stuffy, too cold costs energy from your body and can contribute to complaints such as stiff muscles.
Humidity
A relative humidity between 40 and 60 percent is generally considered healthy. Too dry air (below 30 percent) can contribute to irritated airways and dry eyes. Too humid air (above 60 percent) increases the chance of condensation and mold.
Ventilation and CO2
Every breath increases the CO2 level in a room. Insufficient ventilation lets this level rise, which can contribute to a tired or slightly dull feeling, especially in the bedroom after a night with the door and windows closed. Regular airing and open ventilation grilles keep the air fresher.
Clean air
Fine dust, household dust, pollen and cooking smells affect how clean the air in the house feels. This plays a role especially for people with allergies or respiratory complaints.
How do you recognize an unhealthy indoor climate?
- Fogged-up windows or a musty smell in the house
- Headache or fatigue that disappears as soon as you go outside
- A stuffy feeling in the bedroom when waking up
- Lots of dust that quickly returns after cleaning
- Dry eyes, irritated airways or an itchy nose indoors
This is how you work on a better indoor climate
Start with the basics: ventilate daily, even in winter, and keep an eye on the temperature and humidity with a simple thermometer and hygrometer. If the air in the house is structurally too humid or you notice a lot of fine dust and pollen, targeted equipment can help. For fine dust, pollen and household dust, an air purifier with a HEPA 13 filter such as the Dynter AirPure Plus PA244 is a practical addition. If you are dealing with too high humidity, then a dehumidifier is a logical choice. Our advice: first tackle ventilation and temperature, and only then look at extra equipment for the remaining points.