The way they cleaned my ducts, for about 135, was as follows:

- attached a suction (giant hose) to the intake of my system, there is where
they create the vacumn pressure and collect all the debris.
- they go to each vent and spray high powered air to push any debris through
the ducts, and the vacumn pressure helps to send the debris to the vacumn.
- sterilizing the vents consists of spraying 'simple green' into your vents.
(not effective as you can imagine).

The main place where there is debris, which is built up and may be of
concern is the return duct. This is where
the big vent which takes in air and sends it to your system for heat or
cool. This is where the real debris is and where
you get the bang for your buck. When they clean here your gonna hear lots of
dirt and debris being sucked into
the vacumn. The other ducts, are normally rather clean since air is always
flowing through them and tends to keep
debris and dust down..

I thought it was worth it and the return duct was really filthy and thick
with buildup, afterwards it was all shiny.

one persons experience.



"Jag Man" wrote in message
. ..
What exactly do air duct cleaning people do? I see ads in the
newspaper
for $99 to clean typical forced-air homes, and it strikes me that they
can't do much for that.

Can one do it himself?

TIA

Ed