Air Duct Cleaning Techniques
If your air ducts need to be cleaned, you should know that there are
many different air duct cleaning techniques that can be used. A
qualified duct cleaning professional should be able to tell you about
the best method for your situation, and may recommend using a
combination of techniques to address all of the relevant issues.
Some commonly-used cleaning techniques include:
- Brushing. Technicians may use manual brushes and/or
power-operated brushes to loosen debris in the air ducts. Special
techniques are required when cleaning air ducts made of fiber glass duct
board or insulated internally with fiber glass duct liner, as
aggressive brushing techniques can cause damage.
- Use of blowguns or similar devices. Devices like blowguns,
air skippers and air whips are used to drive debris toward collection
devices. They may be portable devices or truck-mounted.
- Use of negative pressure devices. These devices create
negative pressure within the air duct system, helping to control the
spread of debris and contaminants such as mold in the system. They
prevent debris from being dispersed into the home during the cleanup
- Use of hand-held HEPA vacuums. These vacuums are used to
remove debris and other contaminants from air ducts. The HEPA filter is
necessary, especially when dealing with potentially dangerous
substances like black mold, in order to prevent substances from escaping
the vacuum device and spreading to other areas of the home.
- Chemical biocides. Professionals may recommend using a
chemical biocide to kill bacteria, mold and other fungi inside your air
ducts. The Environmental Protection Agency urges consumers to agree to
the use of such products only after learning about all the potential
risks and benefits; the chemicals may lead to health problems in some
- Sealants. Professionals may also recommend applying a
sealant to your air ducts to prevent any dirt or dust inside from being
released into the air inside your home. The Environmental Protection
Agency warns that sealants don’t always coat the insides of air ducts
completely, thereby not serving their intended purpose, and that they
may break down over time, actually creating debris in your air ducts.
Discuss all potential advantages and disadvantages with a professional
before decided whether or not to agree to the use of sealants in your
The Best Air Duct Cleaning Techniques for Your Home
The best air duct cleaning techniques for your home will depend on the
type of heating, ventilation and air conditioning system you have, the
type of debris or other contaminates in the system and other factors
unique to your home. There is no one-size-fits-all technique that is
best for every situation. Ask a professional what technique or
techniques he or she recommends using for your home, and why.
Finding a Professional to Clean Your Air Ducts
It’s important to find a qualified professional to clean your air ducts,
especially if you suspect you have mold or some other hazardous
substance growing inside them. Make sure professionals comply with the
standards set by the National Air Duct Cleaners Association (NADCA) and
that they hold state certification if certification is required in your
state. Professionals may also hold NADCA certification, though this is
not required by law. Follow this link for a list of qualified
Duct Cleaning Professionals
in your area. Don’t be tempted to go with a less-than-qualified professional just to save money; it’s just not worth the risk.
For More Information
For more information on air duct cleaning techniques, of course you can
contact a qualified professional. You can also email us with any
questions. We promise to get back to you as soon as possible with the
information you need.
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