If microbial

If microbial
contamination is a
concern the HVAC
system can be cleaned
and then sanitized. In
some HVAC systems
there is fiberglass
insulation. In many of
these systems this
insulation is
deteriorated over time
and must either be
replaced or repaired.
The ultimate goal is to
remove all of the
accumulated dirt, debris
and other contamination
found in the system.
This is called source
removal.