The majority of problems with indoor air is caused by dirty air conditioning ducts. HVAC systems are common in homes and provide air conditioning year-round. Air is circulated through the ductwork providing cool air in the summer and warm air in the winter. Over time, this ductwork become a nesting ground for all type of debris, bacteria, and microbes. These bacteria and microbes are known to be harmful to humans, especially to those who suffer with upper respiratory problems such as asthma or allergy suffers. Even people considered to be perfectly healthy can suffer illnesses due to dirty ducts. So, it is important to have you ducts cleaned as often as needed depending on your HVAC usage, the occupants, and flooring.   Read more... (764 words, 1 image, estimated 3:03 mins reading time)