We spend most of our time indoors. Our activities, the objects and the materials that surround us release substances into the air that can be harmful to health. 

How to deal with indoor pollution?

Dealing with indoor air pollution means treating two aspects:

  • treating the patient
  • treating the environment.

Treating the patient

  • If you observe symptoms that can be attributed to indoor air pollution, consult a doctor. He will judge whether it is necessary to conduct an air quality analysis at your home.
  • An indoor air quality test first looks at the patient’s medical history and the environment in which they live. This medical and environmental history completes the medical diagnosis provided by the doctor and sheds light on the type of measurements to be carried out in the patient’s environment (measurements of molds or mites, etc.). Sciensano can take samples and analyze microbiological samples.
  • Depending on the results of the test, the doctor can make a more detailed diagnosis and monitor the evolution of symptoms after the successive elimination of pollutants.

Treating the environment

Based on the air analysis conducted at the home by the regional services, you will be given advice to avoid certain substances or remedy the presence of damp, dust, or possible molds.


In collaboration with the regions, Sciensano carries out sampling and analysis on a number of microbiological pollutants (bacteria, fungi, molds) in private (residential) and public places.

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