The quality of air inside the room is it in the office or house, or clean rooms or hospitals, is of great significance on an individual's health. It has been observed that indoor air is often more polluted than outdoor air. Due to the revolution which has come in improvising construction / building techniques and need for energy efficiency has led to buildings with no air circulation, therefore, indoor air circulates with any contaminants present. The health of individuals is affected by these contaminants and lead to respiratory problems, allergies, chronic fatigue, headache, and so on. For more information please logon http://cutt.us/Xx6K6