Q:

How often should you clean air ducts?

A:

Quick Answer

Air duct cleanings should take place every three to five years. People moving into a home should have the air ducts cleaned unless they know the service has taken place in the last three years. After a remodeling project, it's wise to clean the sawdust out of the ducts.

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Full Answer

Cleaning air ducts cuts down on the amount of bacteria and mold within the system. It also reduces the dust sitting on the surface of return-air ducts, although its benefits for supply-air ducts are less tangible. The best method involves cleaning the fan on the air handler/furnace and the return-air ducts only.

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