Kenmore Sears Evaporative table top Humidifier 42.14121 (3 gallon) Owner's Manual page 7

Step #6
Residue onthe FilterPadcanreduce its usable life.To
prevent t he buildup of residue inandonthe FilterPad,
turnthe padover, t op to bottom, a t everyfilling.Also,
anywaterleftinthe bottomofthe BaseReservoir
shouldbeemptied ateveryfilling. W itheachemptying,
usea spongeor paper towelto wipethe Base
Reservoir dry.
CLEANING
Weekly cleaning is required for proper operation of
this humidifier. Tap water may contain impurities or
dissolved solids which could leave a residue upon the
inner surfaces of the humidifier and on the Filter Pad.
Water residue can inhibit the wicking ability of the
Evaporative Pad and shorten its usable life.
It is recommended that you clean this humidifier every
week or more often where water quality is poor. More
frequent cleaning may be necessary if you see a heavy
build-up of impurities.
TO CLEAN THE HUMIDIFIER
Step #1
Turn the humidifier OFF and UNPLUG the unit.
Step #2
Remove the Upper Motor Housing, Water Tank and
the Filter Pad from the Base Reservoir.
Step #3
Empty the Base Reservoir and Water Tank and rinse
with clean tap water.
NOTE: FAILURE TO REMOVE THE FILTER PAD
BEFORE CLEANING WiLL DESTROY THE PAD.
Step #4
Scale Removal
(Perform this operation weekly)
A. With the Filter Pad removed, fill the Base Reservoir
with water and add 8 oz. of undiluted
white vinegar.