The Earth is the only one living planet of Solar System. The Earth is surrounded by ozone layer which forms the sky around the Earth. Between Sky & Earth the biosphere is present. In biosphere the gaseous mixture (the air) is present, the air is essential for lives due to presence of oxygen. Day by day the air or atmosphere is polluting continuously with increasing of several pollutants in air. The respiratory system of living organisms is directly communicated with atmosphere. During the processes of respiration the air pollutants also enter with oxygen in the respiratory system and then also enter the body and create various diseases. This paper advocates the study of human respiratory system with the studies of air pollution & caused diseases should be know at every learning & Communicating Stages of day by day life.