Humidity will be the amount of moisture in the atmosphere. It is an important element while figuring out the quality of air. High and also minimal humidity levels have adverse - http://www.melodyhome.com/category-0/?u=0&q=adverse effect on the health of an individual. Low humidity level is if the air is extremely dry. Air which is dry can cause a number of problems, which might vary from common cold as well as cough to serious respiratory problems like asthma and sinus. A humidifier certainly is the solution to this problem associated with a low moisture level.