
HONEYWELL  
COOL MOISTURE 
HUMIDIFIER
MODEL SERIES HEV355
Replacement Wicking Filter  
Honeywell HAC-504AW Filter Type A
      
IMPORTANT  
SAFETY INSTRUCTIONS
READ AND SAVE THESE SAFETY
INSTRUCTIONS BEFORE USING
THIS HUMIDIFIER
When using electrical appliances, basic 
precautions should always be followed to 
reduce the risk of fire, electric shock, and 
injury to persons, including the following:
1.   Always place this humidifier on a firm, flat and 
level surface. This humidifier may not work 
properly on an uneven surface.
2.   Place this humidifier in an area where it is not 
accessible to children.
3.   Do not place the humidifier near any heat 
sources such as stoves, radiators, and heaters.
4.   Do not use the humidifier outdoors.
5.   Before using the humidifier, check the power 
cord for any signs of damage. If the cord is 
found to be damaged, DO NOT USE and return 
the humidifier to the manufacturer under the 
warranty agreement for repair.
6.   This appliance has a polarized plug (one blade 
is wider than the other). To reduce the risk of 
shock, this plug is intended to fit only one way 
in a polarized outlet. If the plug does not fit 
securely in the outlet, reverse the plug. If it  
still does not fit, contact a qualified electrician.  
DO NOT attempt to defeat this safety feature.
7.   To disconnect the humidifier, first turn controls 
to the OFF position, then grip the plug and pull 
it from the wall outlet. Never pull by the cord.
8.   A loose fit between the AC outlet (receptacle) 
and plug may cause overheating and a 
distortion of the plug. Contact a qualified 
electrician to replace loose or worn outlet.
9.   The humidifier should always be unplugged 
and emptied when not in operation or while 
being serviced or cleaned.
10.  Never tilt or attempt to move the humidifier 
while it is operating or filled with water. 
UNPLUG the humidifier before moving.
11.  This humidifier requires regular cleaning.  
Refer to the CLEANING instructions provided. 
Never clean the humidifier in any manner  
other than as instructed in this manual.
12.  Do not direct moisture flow directly at 
individuals, walls or furniture.
13.  When a humidifier is used in a closed room 
or small rooms, check periodically for proper 
ventilation, as excessive humidity can cause 
condensation stains on walls.
14.  Turn the humidifier OFF if you notice  
moisture on the inside of your windows. 
For proper humidity reading, use a humidity 
monitor like Honeywell HHM10 available at 
retailers or www.honeywellcomfort.com.
Honeywell is a trademark of Honeywell International Inc. used under license by Helen of Troy Limited. 
Honeywell International Inc. makes no representation or warranties with respect to this product.