Jasper County Democrat, Volume 9, Number 3, Rensselaer, Jasper County, 21 April 1906 — How the Air In Purified. [ARTICLE]

How the Air In Purified.

Motion, mechanical and molecular, the great law of the universe, is a natural method for the purification of the atmosphere. Its power as a purifier of the air is shown mechanically in the flow of rivers and in the ocean currents. Molecularly it serves the same purpose in the form of heat, light and electricity. When not in motion air stagnates as water does and becomes offensive and bad, because It is easily Impregnated with flue animal and vegetable dust as well as noxious gases. Certain physical conditions are always necessary for the continual movement of the air. We know that the diurnal motion of land and sea air brings the warm days and cool nights as well as the rain and wind. In the tropical regions as the sun rises the heat of the day increases, and the breeze sets in from the sea to the land. As the sun goes down the heat diminishes, and at aunset the temperatures of sea and land are equal. At night again the breeze is from land to sea until morning, when the temperature may become equal and the sea breeze return.