Frequently Asked Questions - Air
air ducts be cleaned?
Studies have shown that the air quality
inside your home can be 2 to 5 times MORE polluted than the air
outside. air. Most disposable filters only remove about 10% of
pollutants and allow 90% to enter your home's HVAC system, only to
be recirculated over and over throughout your entire home. The
pollutants contain dust, pollen, mold spores, animal dander, and
much more. These materials collect in the HVAC system and duct
surfaces, just as they do on your furniture and floor surfaces.
The furniture and floor are cleaned regularly but the duct
surfaces are hidden from view and can only be reached by
specialized duct cleaning equipment. These pollutants can migrate
out into the room again, or become a food source for mold and
bacteria, which can thrive in this dark environment, grow, and
then can release mold spores or toxins into the indoor air you
mold grow in a duct system and what problems can it cause?
Mold spores require a stable temperature,
a food source, and moisture to live and reproduce. Dust and dirt
that go through the filter are a good food source. Your HVAC
system is designed to maintain a comfortable temperature, and
moisture is available from humid conditions in the environment
and/or any optional whole-home humidifier installed. Live molds
can release spores that will trigger allergic and/or asthmatic
reactions, sometimes severe, in about 10% of the population. Mold,
both living and dead, can produce toxins that may cause short term
allergic reactions. Long term exposures to low levels of some mold
toxins can result in permanent chemical sensitivity to common
compounds in the environment.
the air system be cleaned?
The following process describes MyDirtyDucts's full
service air duct cleaning. The process of air duct cleaning
involves four steps:
- Clean the HVAC unit (furnace/air conditioner).
- After testing the system for proper operation, we will
disconnect the power before opening the unit for safety.
- Vacuum the interior surfaces of the Furnace/Air
- Clean the cooling coils with a HEPA vacuum and a coil
- Clean the Blower unit.
- Clean the supply and return registers and grills.
- Remove wall, ceiling and floor registers.
- Wash the registers.
- Clean the supply and return ducts.
- Clean all air ducts using powerful duct cleaning
- Apply sealant and deodorizer.
- Install high quality or electrostatic air filter and
odor control products.
- Install odor control in the return to control odors
for up to 3 months.
dirty air system result in higher energy costs?
Depending on the amount of contamination
introduced to your HVAC system from the surrounding environment,
energy consumption could be minimally to greatly increased by a
professional HVAC and air duct cleaning. If the fan blades,
evaporator coil, or other control components of the system are
heavily contaminated, the system may have to run much longer to
cool or heat the occupied space during each cycle, thereby wasting
parts of the air system should be cleaned?
There are three major parts in a standard HVAC system:
- the supply and return grills,
- the interior surfaces of the supply and return vents,
- the HVAC air handler.
All three components must be cleaned. If only one or two of the
components are cleaned, the contaminates from the remaining
component will gradually contaminate the others over time.
should I have my air ducts cleaned?
Once the entire HVAC system is thoroughly
cleaned, depending on the surrounding environemnt, it should
remain clean for about 3 to 7 years if properly maintained and
high arrestance filters are installed and changed regularly.
HOwever, if you live in an area where the outdoor air contains a
higher than normal pollution level, such as near a quary, a mill,
a mine, or a heavy traffic road, your system could require
cleaning more often, maybe even each year.A standard disposable
filter only stops about 10% of the airborne contaminates, allowing
90% of the rest to flow back into the HVAC system. To maintain
protection against biological growth, an EPA registered biocide
should be applied every 6 to 12 months by a qualified Duct
the sources of air duct contamination?
All indoor air was once outdoor air. All
of the dust, chemicals, pollen, insects, and mold spores in the
outdoor air can be pulled into the air system. People shed
millions of tiny dead skin cells every hour. Cooking smoke,
household insect sprays, and personal care products are just some
examples of indoor contamination sources. Many construction
materials, carpets, wood products, and plastics release
contaminants into the indoor air as well. During construction or
remodeling activities, many types of dust are produced and find
their way into the duct work. If the duct components were stored
outside prior to construction, they may have collected dust, rain
water and even mold before they were installed in your home.
it cost to have a whole air system cleaned?
This is the most asked question and it
depends on many factors. Some of those factors include the size of
your home, the number of supply ducts, the number of returns, how
long since the system was last cleaned, where the home is located,
and how often you open and then close your windows. When you make
the decision to have your HVAC system cleaned, you should have the
entire HVAC and air duct system cleaned and then install high
quality filters on a regular basis to keep the system clean
longer. A thurough, knowledgable, and professional HVAC system and
air duct cleaning company would not be able to do this for much
less than $400 for a small home or $800 for a large home.
Commercial spaces cannot be estimated as their systems are usually
much larger and more complicated.