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Your Air Ducts- To Clean or Not To Clean? That is the Question, Here is the Answer
According to the (NADCA), National Air Duct Cleaners Association, a professional association based in Washington, D.C., air duct cleaning is a buyer-beware service. Some companies promoting duct cleaning may be either bait and switch operations or companies that do inferior jobs with unprofessional equipment.
Any professional cleaner would question a company that employ only shop-vac sized machines with a single 2-inch hose. To do a good job, powerful machines mounted in specially equipped vehicles with varying types of hoses and attachments will be needed in most cases to adequately reach all duct areas.
But even if the technician is prepared, the above information begs the question: "Is air duct cleaning really worthwhile?" You can check some of your own ducts with a mirror and a flashlight. Unscrew several of your wall or floor vents and, using your mirror, look into the ducts.

 
If there aren't any large deposits of dust, dirt or mold, or if no one in your home suffers allergies or asthma, having air ducts cleaned is probably unnecessary, according to advice provided by the U.S. Environmental Protection Agency. Also, just because you have dirty return grilles doesn't mean you have dirty ducts. It's normal for dust-laden ... more

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