The truth is, there's no evidence that professional duct cleaning will make the air cleaner than it is now. In fact, the EPA made a statement that it is not necessary to clean air ducts unless there is visible mold growth or other contamination. However, air duct cleaning is an excellent investment for those looking for the best possible indoor air quality. It's not at all a waste of money, as long as it's not done too often.\These products are specifically designed for use in ducts or as ducts themselves, and are tested according to standards established by Underwriters Laboratories (UL), the American Society for Testing and Materials (ASTM), and the National Fire Protection Association (NFPA).
Whether you decide to clean your home's air ducts or not, it's essential to commit to a good preventive maintenance program to minimize duct contamination. Cases in which the use of sealants to encapsulate duct surfaces may be appropriate include repairing damaged fiberglass insulation or combating damage caused by duct fires. Unless a family member is allergic to dust and you want to take special precautions in addition to using a HEPA vacuum, cleaning the ducts may not make any difference, from a health point of view, to indoor air quality.\In addition, cleaning air ducts can eliminate the presence of mold in immediately visible areas; however, unless you discover and address the root cause of mold, you may find yourself struggling again in the future. The EPA recommends that, if you choose to use duct cleaning services, only use them in ducts made of solid metal sheets.
As long as cleaning is done properly, there is no evidence to suggest that such cleaning is harmful. Most organizations that deal with duct cleaning, including the EPA, NADCA, NAIMA, and the National Association of Metal Plate Contractors and Air Conditioning (SMACNA), do not currently recommend the routine use of sealants to encapsulate contaminants in any type of duct.\In addition to regular air conditioning maintenance, more and more homeowners are considering cleaning air ducts for the first time to improve indoor air quality and reduce irritants in the air. If sufficient dirt and moisture are allowed to enter the duct system, there may be no significant difference in the rate or degree of microbial growth in internally lined or bare sheet metal ducts. You can also contact professional duct cleaning service providers and ask them about the services they offer.
This is because much of the dirt that can accumulate inside the air ducts adheres to the surfaces of the ducts and does not necessarily enter the living space.\However, there is little evidence to indicate that simply cleaning the duct system increases the efficiency of the system. While many of these products can be legally used inside uncoated ducts if all instructions on the label are followed, some of the instructions on the label may not be appropriate for use in ducts. Sealants should never be used on the wet lining of ducts, to cover actively growing mold, or to cover duct debris, and should only be applied after cleaning in accordance with NADCA guidelines or regulations or other appropriate guidelines or regulations.
