how is the air quality in your home? - concept with a icon house

activity air architecture asbestos bacteria biological building carbon check chemical cigarette compounds concept concepts condensation dioxide domestic dust environmental formaldehyde fumes fungal heaters home house household ideas indoor indoors lead life list matter mite mold monoxide nitrogen organic outdoor outdoors oxide particles particulate passive pollutants pollution products quality radon residential secondhand smoke smoking stale stoves test tobacco vapors vocs volatile