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C L E A N
I N G
We recommend that you
clean the humidifier once a
week, or more often if you:
• have hard water,
• notice a build-up of
impurities, or
• detect unpleasant odors.
It is normal for deposits
from tap water to collect in
the Remove and Rinse™
tray.
DO NOT USE SOAP,
DETERGENTS, OR
ABRASIVE CLEANSERS.
Cleaning involves two
steps: SCALE REMOVAL
and DISINFECTING. Be
sure to perform these in the
proper order to avoid
harmful chemical interac-
tions.
• First, turn off and
unplug the humidifier. Wait
at least ten minutes for the
humidifier to cool.
• Remove the No Drip™
water tank by grasping the
handle and pulling straight
up.
MODELS DH-909/DH-910
• Remove the Mist
Chamber by pushing the
locking tab and lifting up
from the Base (Figure 5).
Never remove the Mist
Chamber until the humi-
difier has cooled.
Fig. 5
MODELS DH-911/DH-912
• Remove the Mist
Chamber by pulling out the
locking knob and
lifting up from the base
(Figure 6). Never remove
the Mist Chamber until the
humidifier has cooled.
• DO NOT clean the Mist
Chamber or heating ele-
ment under running water.
Doing so may cause dam-
age or personal injury.
Fig. 6
• Use a dry, soft cloth to
wipe the outer surfaces.
Step One: W E E K L Y
S C A L E R E M O VA L
(Remove and Rinse™ Tray)
• Lift the Remove and
Rinse™ tray out of the unit.
• Fill the Remove and
Rinse™ tray with
DuraRinse™ Humidifier
Cleaner (#AC-816), follow-
ing bottle instructions, or
one 8-oz. cup of undiluted
white vinegar. Let solution
stay for 20 minutes.
• With DuraRinse™ or
vinegar still in the tray,
clean all interior surfaces
of the tray with a soft
brush or cloth to remove
scale.
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