Central air conditioning became popular about fifty years ago, and with it came the need for that cooled air to be distributed throughout homes. The solution was ductwork. New houses started to be built with systems of ducts, and this became so common that it’s rare to find a home built in the last few decades that doesn’t have ductwork, which is now used for heating as well.
Having your cooled and heated air evenly distributed throughout your home is wonderful! But it does raise some questions. What’s going on inside those ducts, where you can’t see? And since many ducts are above ceilings or between walls, you might not even be able to see them at all. Can unpleasant things accumulate inside ductwork? Does that affect your indoor air quality? Will duct cleaning help? Here’s what to know.