Indoor air quality is now more important than ever before, especially as people spend almost all of their time inside homes or workplaces. A key component that influences indoor air quality could be the cleanliness from the air ducts—the hidden network that circulates heated or cooled air throughout a building. https://kanban.xsitepool.tu-freiberg.de/k7bGkgQkSLOzgig2XHVYOg/