This is a collection of objects which improve indoor air quality by purifying air in a natural way and by regulating humidity and temperature. Titanium, used as paint, releases active ions when exposed to light, which react with toxic substances, splitting them into harmless ones. The absorbent cotton fabric with a panel containing silicon oxide controls the levels of humidity, making them equal in various rooms. The temperature is modified by the special quilted panel. It is made of cotton fabric filled with thick foam: the high degree of foaming secures large amounts of immobilised air inside, which is one of the best insulating substances. This project draws attention to air quality and the way it is affected by the materials which surround us.