Air ducts. Remember those scenes in the movies, where the main character is stealthily crawling through a building’s duct work system? Isn’t it amazing how clean and shiny the inside of those ducts are? Sadly, that is NOT what a typical system looks like inside.
What’s really in your air ducts? What happens to the airborne particles in your home and office? They are pulled into your duct work every time it turns on. These pictures show a buildup that is not unusual for a system left untouched for five or more years. This is what the inside of your duct work system really looks like!
Why is this of concern?
This blanket of dirt and contaminants is bad enough as it builds up in the duct work, causing your heating and cooling system to work harder and reducing its efficiency. The organic material that settles in there – human and pet hair, skin cells, pollen, dust, mice feces, insects, cooking oils, particles from cigarette smoke, and dirt – can also support the growth of mold and mildew if it becomes wet or humid inside your system. In addition, it can also aggravate asthma and allergy symptoms.