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Duct Cleaning1-5 of 5 Articles, Hints & Tips- Typical duct systems lose 25 to 40 percent of the heating or cooling energy put out by the central furnace, heat pump, or air conditioner.
- Responding to a question from our readers.
- In a typical forced-air system with leaky ducts and an inefficient filter, the ducts are usually contaminated with a wide variety of particulates and microorganisms—all directly exposed to the air being breathed by the occupants.
- From The Healthy House Answer Book: Answers to the 133 most commonly asked questions. Questions 64-71.
- If not properly installed, maintained and operated, air duct components may become contaminated with particles of dust, pollen or other debris.
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