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Many contaminants that contribute to poor indoor air quality are
found in the HVAC System. In an October 1997 report the EPA stated that if
not properly maintained, air duct components may become contaminated with
particles of dust or other debris. If moisture is present, the potential
for microbiological growth is increased and mold spores may be released in
the indoor environment. Cleaning a dirty and improperly maintained HVAC
System will significantly improve indoor air quality.
Dirty duct systems are a major source of indoor air pollution.
Airborne contaminants are pulled into the ducts every time the heating and
cooling system runs. Over time, these contaminants build up inside the
ductwork, creating an ideal breeding ground for mold, bacteria, fungi and
other microbes.
Particles drawn into the air ducts also pass through fiberglass
filters and infiltrate into HVAC equipment, undermining the performance
and energy efficiency of these systems. That can lead to higher repair and
maintenance costs, and shorter service life in the long run. According to
the EPA, a build-up of only 0.42" of dirt on a heating or cooling coil can
decrease efficiency by 21%.
Air duct cleaning is a proactive solution to these problems. It
can enhance indoor air quality, improve overall air circulation, eliminate
built-up dirt and contaminants, and extend the life of heating and cooling
systems.
Visit the Environmental Protection Agency (EPA) Site for more information.
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