The young and the elderly population are most effected by bad indoor air quality. Asthma and allergies are the most common chronic illnesses for kids in the U.S. Attacks are often triggered by indoor air allergens such as mold, dust, animal dander and chemicals in everyday products. You have to breathe in order to stay alive but how clean is the air you breathe? If you breathe dirty air you are more likely to develop health problems and become ill. Children are more vulnerable to airborne contaminants than adults due to their weakened immune system. There is no question that prevention is the best medicine by far.