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What to Expect From an Air Duct Cleaning
Service Provider
If you choose to have your ducts cleaned, the service provider
should:
- Open access ports or doors to allow the entire system
to be cleaned and inspected.
- Inspect the system before cleaning to be sure that there
are no asbestos-containing materials (e.g., insulation,
register boots, etc.) in the heating and cooling system.
Asbestos-containing materials require specialized procedures
and should not be disturbed or removed except by specially
trained and equipped contractors.
- Use vacuum equipment that exhausts particles outside of
the home or use only high-efficiency particle air (HEPA)
vacuuming equipment if the vacuum exhausts inside the home.
- Protect carpet and household furnishings during cleaning.
- Use well-controlled brushing of duct surfaces in conjunction
with contact vacuum cleaning to dislodge dust and other
particles. Use only soft-bristled brushes for fiberglass
duct board and sheet metal ducts internally lined with fiberglass.
(Although flex duct can also be cleaned using soft-bristled
brushes, it can be more economical to simply replace accessible
flex duct.)
- Take care to protect the duct work, including sealing
and re-insulating any access holes the service provider
may have made or used so they are airtight.
- Follow NADCA's standards for air duct cleaning and NAIMA's
recommended practice for ducts containing fiber glass lining
or constructed of fiber glass duct board.
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