With a central air conditioning system, your air is transported throughout your home through a series of ducts. Over time there will be a buildup of dust and debris inside of these ducts, and in most cases, these will not be easily accessible for the homeowner to clean. Having dirty ducts can seriously impact the quality of your air, and aggravate allergies, asthma and other respiratory conditions. It could also lead to a musty, stale smell.
To help resolve this problem, you might want to consider using a professional duct cleaning company. These companies use specialized tools that dislodge dirt, and then a high-powered vacuum will be attached to remove all the loose debris. As an added cleaning method, they use chemicals that will kill any microbes inside your system.
There are usually a few options to choose from, and you should take the time to do your research. You want to make sure that they will clean all components of the system so that it does not become quickly contaminated again.