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HOW THE AIR FILTER WORKS
Dirty air fl ows through your return air ducts and enters the
compartment where particles (hair, lint, etc.) are removed by
the fi lter. See fi gure 1.
Filtered air re-enters to the supply duct system of your
building.
DIRTY AIR IN
4" FILTER
FILTERED AIR OUT
CONSTRUCTION OF THE AIR FILTER
COMPARTMENT
Not only is your air fi lter compartment easy to install, it is also easy to
maintain. Its basic components, and their functions, are as follows: (See
Figure 2)
Air Filter Cabinet – mounts to existing duct work and houses the fi lters
4” Filter – collects dust, dirt and other particles.
SCREW
AIR FILTER CABINET
LATCH
DOOR
FILTER
Figure 1
Figure 2