This is why the de-
signed interaction
between the dust
collection built into
each sander and
the dust extraction
system itself is so
important to discuss
before we move on
to the sanders
themselves.
HEPA (High Effi-
ciency Particulate
Air) filters were de-
veloped by the U.S.
Atomic Energy
Commission to re-
move radioactive
dust from industrial
exhaust. These
type filters are now
the primary filtration systems used in the
most sensitive manufacturing and health-
care environments.
They are a most welcome addition to my
studio and will be to your studio or shop
as well!
Another important feature of the Festool
dust collectors is the sealed motor cham-
ber shown above. Only clean air drawn
from the room is used to
cool the motor which is
never in the path of the
incoming dirty air. That
means a longer service
life and little down time.
The green tabs shown
on the inside of the back
wheels in the picture to
the left operate wheel
locks to keep the unit
steady when you want it
fixed in position.
The front wheels are
casters for easy rolling
around.
As the size increases on
the CT 22 and larger
units the motor assem-
bly remains the same,
but the lower chamber holding the bag
HEPA
Filters
CT 33 behind
CT 22 in front
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