Indeluften

Indeluften refers to the air inside buildings and the overall quality of that air. It is shaped by how well spaces are ventilated, the exchange of outdoor and indoor air, indoor humidity and temperature, and emissions from materials, furnishings, cleaning products, cooking, and combustion appliances. Biological contaminants such as mold, bacteria, and dust mites can also affect indeluften, especially in damp or poorly maintained environments.

Common pollutants found in indeluften include volatile organic compounds (VOCs) from paints, solvents, and consumer products; formaldehyde from wood products and furnishings; radon from the ground; carbon monoxide from combustion appliances; and particulate matter from smoking, cooking, or outdoor pollution. These substances can cause short-term symptoms such as eye and throat irritation, headaches, and fatigue, and may contribute to longer-term respiratory problems, allergic responses, or other health risks in sensitive individuals.

Assessment of indeluften often involves measuring indoor pollutants and ventilation parameters. CO2 concentrations are frequently used as a practical proxy for ventilation effectiveness, while concentrations of specific pollutants (VOCs, radon, particulate matter, formaldehyde) may be measured directly in more detailed assessments. Standards and guidelines for indoor air vary by country and organization, with many regions recommending adequate ventilation and air-cleaning strategies as part of building codes and public health guidelines.

Mitigation of poor indeluften focuses on source control, improved ventilation, and filtration. Strategies include using low-emission materials and products, keeping humidity in a range that reduces mold growth, maintaining heating, ventilation and air conditioning systems, employing suitable air filtration, and restricting indoor smoking. Proper design and maintenance of indoor environments are essential for occupant health, comfort, and productivity.