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ir ducts can be found in such places as homes, schools, office buildings, hotels, retail establishments, apartment buildings,etc. Contaminated air ducts are often a major a major source of indoor air pollution. Air ducts can provide the perfect environment for the accumulation of allergens, bacteria, fungi, dust, dust mites, mold, and other organisms. Every time a heating and cooling unit runs, pollutants can be pulled in and over time, they will accumulate and flourish. Eventually, these contaminants are blown into rooms where they are inhaled by the occupants. The result will be the development of illnesses and severe allergic reactions.

Duct Cleaning Benefits

Cleaning your air ducts is a great method of improving the quality of indoor air. It improves air circulation, eliminates the built-up of contaminates, and improves the quality and function of heating and cooling systems.
Duct cleaning involves the cleaning and disinfection of the components of a heating and cooling system. This normally includes supply and return air ducts and registers, grills and diffusers, heat exchangers, heating and cooling coils, drip pans, fan motor, fan housing and air handling unit housing.:thumbsup::thumbsup::thumbsup:


http://www.goodhomepost.com/indoor-air/dirty-air-ducts-contributing-indoor-air-pollution
 
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