The fact that the pollutants that cannot be smelled have increased here is due to so-called VOCs. Perhaps one or the other has heard of it before. Volatile organic compounds are ultimately gaseous substances that are released from both natural and artificial everyday objects. And that often over a very, very long period of time. The VOCs include a variety of chemicals, which accordingly contribute to adverse health effects in the short or long term. This ranges from respiratory diseases to skin diseases, rashes, sleep disorders, etc.

The good thing about this whole topic is that there are not only vaporized materials, materials that damage indoor air, but also a wide range of building materials, of materials that even make it active, for example through photocatalytic air purification, which actively breaks down pollutants by converting light. Functionalized building materials, some of which have been optimized using nanotechnology, effect solar-catalytic air and surface purification. All the way to very traditional building materials, such as lime and sheep wool, which in principle already have cleansing aspects from nature.

Ceramics are applied to the coatings or are partly incorporated into the formulation, which can actively purify the air. Big issue of particulate matter. Here, too, the view from the façade into the interior. Particulate dust binding materials and textile floor coverings play a major role here.

If there are major differences, there are now a whole range of products, textile floors, which are optimized precisely with the fiber construction in order to be able to actively bind significantly disproportionately particulate matter. Can you write down here as a brief summary. One of the biggest goals when choosing and looking at indoor air quality is that you try to produce as low as possible or preferably no VOC emissions at all and incorporate them accordingly.