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Blog/Opinion: Cleaning Your Ducts? Don't Use Chemicals

By HHI Staff

The National Air Duct Cleaners Association (NADCA), an association that seeks to establish standards for the HVAC maintenance and restoration industry, is urging professionals and consumers to avoid using chemicals for cleaning and maintaining air duct systems


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NADCA, recommends the Assessment Cleaning and Restoration (ACR) standard for assessment, cleaning and restoration, promoting "physical source removal" as the best technique for cleaning and decontaminating HVAC systems.

According to NADCA: "The first step in creating a healthy atmosphere is to rid the air of contaminants that contribute to mold, mildew and other microbiological growth...Physical removal of contaminants and debris is the ideal method for cleaning HVAC systems...Source removal is also the safest method because it will decontaminate HVAC systems without the use of chemical products.”

NADCA offers these tips:

  • Overuse of antimicrobial products can lead to needless exposure to chemicals. A product without specific HVAC directions should not be used. The entire HVAC system should be cleaned; this includes cleaning the coils, blowers and other components.
  • Know the difference between ductwork and HVAC systems. Application of chemicals is only acceptable when the product is legally approved for the application. The Environmental Protection Agency (EPA) has not accepted any disinfectant, sanitizer or fungicidal product for use in the ductwork of HVAC systems. However, the EPA has accepted some of these products for use in other components of the HVAC system, when needed. 
  • There are risks associated with chemical products; this is why NADCA encourages physical source removal rather than chemical application to HVAC systems. Possible risks associated with chemical products include allergic reactions, chemical burns and respiratory irritation.

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Cleaning Your Ducts? Don't Use Chemicals :  Created on January 26th, 2013.  Last Modified on January 26th, 2013


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