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If you have a
humidifier
69-0376—4
If your system includes an atomizing humidifier,
you may want to install a standard furnace filter
between the humidifier and the air cleaner. This
filter would keep the humidifier spray mineral
deposits from collecting on the air cleaner. This
filter should be checked regularly and changed
when it shows signs of mineral or dirt buildup. If
you do not install a filter, you will probably need
to wash the cell(s) and prefilter(s) more often to
remove the mineral buildup.
If an ultrasonic room humidifier is used often,
especially when filled with tap (undistilled)
water, the cell(s) and prefilter(s) will require
more frequent washing. A white residue will
accumulate on the cell(s) from the minerals in
the water. This residue may also contribute to
"white dust" (see p. 18).
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