How Do Air Ducts Get Dirty?

A common question that homeowners have when they consider
investigate air duct cleaning is: how did the air ducts get dirty?
In a typical six-room home, up to 40 pounds of dust is created
annually through everyday living. Some of the dust settles
on your floor, furniture and other possessions,
but much of it remains suspended in the air.

These contaminants are pulled into the HVAC system
and re-circulated 5 to 7 times per day, on average.
Even though this air is filtered, filters cannot remove
all the contaminants. Over time, this re-circulation
causes a build-up of contaminants in the duct work.

Normal contaminants include:

  • Dander
  • Dust
  • Chemicals
  • Smoke
  • Pollen
  • Mold

All parts of your HVAC system, including your air ducts, get dirty over time.

  • Supply ducts
  • Return ducts
  • Cooling coil
  • Heat exchanger
  • Blower
  • Filter

For better air quality filtering throughout your home, let the Moscow, Lewiston, Pullman and Surrounding Areas professionals come and do a full home or office duct cleaning service for you. Thinking about how much dander, dust, chemicals, etc. build up over time, it is a good time to start thinking about having the air ducts cleaned.
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