What are the pros and cons in air duct cleaning?

Advantages and disadvantages of air duct cleaning Increase the efficiency and lifespan of your HVAC. Eliminate the risk of dangerous diseases. A visual inspection is not possible. It was just a filter change. The EPA does not recommend that air ducts be cleaned, except when necessary, due to continuing uncertainty about the benefits of duct cleaning under most circumstances.

However, the EPA recommends that if you have an oven, stove, or chimney that burns fuel, they be inspected to make sure they are working properly and serviced before each heating season to protect them against carbon monoxide poisoning. Some research also suggests that cleaning dirty cooling coils, fans, and heat exchangers can improve the efficiency of heating and cooling systems. However, there is little evidence to indicate that simply cleaning the duct system will increase the efficiency of the system. The Environmental Protection Agency (EPA) states that no research has conclusively demonstrated whether cleaning ducts prevents health problems.

This is because much of the dirt that can accumulate inside air ducts adheres to duct surfaces and does not necessarily enter the living space. Manufacturers of products marketed to coat and encapsulate duct surfaces claim that these sealants prevent dust and dirt particles inside air ducts from being released into the air. While many of these products can legally be used inside uncoated ducts if all instructions on the label are followed, some of the instructions on the label may not be suitable for use in the ducts. Most organizations that deal with pipeline cleaning, including the EPA, NADCA, NAIMA, and the National Association of Sheet Metal and Air Conditioning Contractors (SMACNA), currently do not recommend the routine use of sealants to encapsulate contaminants in any type of duct.

If sufficient dirt and moisture are allowed to enter the duct system, there may be no significant difference in the speed or degree of microbial growth in internally lined or bare sheet metal ducts. If you've recently purchased a home and aren't sure that previous homeowners have changed filters regularly, now's a good time to clean your ducts and adjust your system. Cleaning the accumulations inside the ducts will make the system deliver and extract air smoothly and effortlessly, eliminating the need of operating under pressure. Therefore, if you stay in an area where a lot of dust blows, cleaning the ducts once every 3 years is a sufficient solution.

Sealants should never be used on the wet lining of ducts, to cover actively growing mold or to cover dirt in ducts, and should only be applied after cleaning in accordance with NADCA or other appropriate guidelines or standards. Whether or not you decide to clean your home's air ducts, it's essential to commit to a good preventive maintenance program to minimize duct contamination. These products are specifically designed for use in ducts or as ducts themselves, and are tested in accordance with standards established by Underwriters Laboratories (UL), the American Society for Testing and Materials (ASTM) and the National Fire Protection Association (NFPA)). You've probably seen an advertisement, received a coupon in the mail, or a company contacted you directly to offer you to clean your home's air ducts as a way to improve indoor air quality in your home.

Ervín Ferencz
Ervín Ferencz

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