The air element is perceived by the sense of touch. Air is as important as water. Without breathing, a man dies within a few minutes. A house also has to ‘breathe’ harmoniously so that space itself does not become lifeless. The quality and dynamics of the air to breathe inside the house does contribute significantly to the health of its inhabitants. Studies have revealed that in most residential buildings nowadays the quality of the indoor air is far worse than the air on crossroads with heavy traffic. The cause is the use of toxic building materials and poor ventilation. Natural building materials such as loam, wood and natural stones ‘breathe’ and purify the air inside the rooms automatically.