background image

cool mist 

humidifier 

MODEL 

BCM1745

14.Humidifier should be unplugged when not in use.

15.NEVER tilt, move, or attempt to empty unit while it is

operating. Shut off and unplug before removing the
water tank and moving the unit.

16.This humidifier requires daily and weekly maintenance

to operate appropriately. Refer to daily and weekly
cleaning procedures. Use only cleaners and additives
recommended by the manufacturer.

17.NEVER use detergents, gasoline, glass cleaner, furniture

polish, paint thinner, or other household solvents to
clean any part of the humidifier.

18.Excessive humidity in a room can cause water

condensation on windows and some furniture. If this
happens, turn the humidifier OFF.

19.Do not use humidifier in an area where humidity level is

in excess of 50%. Use a hygrometer, available at your
local retailer or through the manufacturer, to measure
the humidity.

20.DO NOT attempt to repair or adjust any electrical or

mechanical functions on this unit. Doing so will void
your warranty. The inside of the unit contains no user
serviceable parts. All servicing should be performed by
qualified personnel only.

21.Never place housing under water flow or immerse in liquids.

22.Do not plug in the cord with wet hands: electric shock

could result.

23.Do not pour water in any openings other than the

water tank.

24.To prevent damage to surfaces, do not place humidifier

under overhanging surfaces.

25.NEVER operate unit without water in the tank.

26.Use both hands when carrying full tank of water.

27.Never unplug unit while it is running as arcing may

occur and cause injury. Use power switch to turn off
unit before unplugging.

PLEASE SAVE THESE 
INSTRUCTIONS

CONSUMER SAFETY INFORMATION

THIS PRODUCT IS EQUIPPED
WITH A POLARIZED AC PLUG (a
plug having one blade wider than
the other). This plug will fit into the
power outlet only one way. If the
plug does not fit fully into the
outlet, reverse the plug. If it still

does not fit, contact qualified personnel to install the proper
outlet.

HUMIDIFIER SAFETY

PLEASE READ AND SAVE

THESE IMPORTANT

SAFETY INSTRUCTIONS

IMPORTANT SAFEGUARDS

When using electrical appliances, basic safety precautions
should always be followed to reduce the risk of fire, electric
shock, and injury to persons, including the following:

1. Read all instructions before using the appliance.

2. To avoid fire or shock hazard, plug the appliance directly

into a 120V AC electrical outlet.

3. Keep the cord out of heavy traffic areas. To avoid fire hazard,

NEVER put the cord under rugs or near heat registers.

4. DO NOT place humidifier near heat sources such as

stoves, radiators, and heaters. Locate your humidifier
on an inside wall near an electrical outlet. The humidifier
should be at least 4” away from the wall for best results.

5. NEVER place humidifier in an area where it is accessible

to children. NEVER use humidifier in a closed room,
particularly where a child may be sleeping, resting, or
playing (a closed room may result in excessive humidity).

6. WARNING: Do not attempt to refill humidifier without first

unplugging the unit from its electrical outlet. Failure to heed
this warning may cause personal injury. Be sure to unplug
the unit by pulling on the plug and not the cord.

7. Never place anything over moisture outlet when the unit

is running.

8. NEVER drop or insert any object into any openings

unless instructed in this manual.

9. DO NOT operate any appliance with a damaged cord

or plug, after the appliance malfunctions, or if it has
been dropped or damaged in any manner. Return
appliance to manufacturer for examination, electrical or
mechanical adjustment, or repair.

10.Use appliance only for intended household use as described

in this manual. Any other use not recommended by the
manufacturer may cause fire, electric shock, or injury to
persons. The use of attachments not recommended or
sold by the manufacturer may cause hazards.

11.DO NOT use outdoors.

12.Always place humidifier on a firm, flat, level surface.

A waterproof mat or pad is recommended for use
under the humidifier. NEVER place it on a rug or carpet,
or on a finished floor that may be damaged by exposure
to water or moisture.

13.DO NOT allow the Moisture Outlet to directly face the wall.

Moisture could cause damage, particularly to wall paper.

water tank on the base. THE TANK WILL
IMMEDIATELY EMPTY ABOUT A QUARTER OF THE
WATER INTO THE BASE OF THE HUMIDIFIER (the
humidifier tank and base hold about 1.4 gallons).

NOTE:

The BCM1745 produces a clean, cool, INVISIBLE

moisture. It is normal not to see the moisture. 
To reach the maximum water capacity, remove and fill the
tank a second time after it finishes emptying into the
base. Replace the tank onto the base. A small amount of
water may empty into the base.

4. Plug the power cord into the electrical outlet.

OPERATING INSTRUCTIONS: 

1. Move the Humidity Control Switch to the HI position.

Move the Humidity Control to the LO setting to lower
the humidification rate. Allow up to 30 minutes for the
filter to fully absorb water and the unit to produce the
maximum moisture output.

NOTE:

We recommend the use of the hygrometer which

reads the actual humidity level in your room. A humidity
level below 20% can be unhealthy'and uncomfortable.
The recommended humidity level is between 40% to
50%.

DO NOT DEFEAT THE SAFETY PURPOSE OF THIS
POLARIZED PLUG IN ANY WAY.

PLEASE READ AND SAVE
THESE IMPORTANT
SAFETY INSTRUCTIONS 

CONSUMER SAFETY INFORMATION

NOTE:

This is an electrical appliance and requires

attention when in use.

NOTE:

If moisture forms on the walls or windows of the

room, turn off the humidifier. The room already has plenty
of humidity and additional moisture may cause damage.

NOTE:

DO NOT block air inlet or outlet.

CORD AND PLUG INSTALLATION SAFETY
INSTRUCTIONS

The length of cord used on this appliance was selected to
reduce the hazards of becoming tangled in, or tripping
over a longer cord. If a longer cord is necessary an
approved extension cord may be used. The electrical
rating of the extension cord must be equal to or greater
than the rating of the humidifier. Care must be taken to
arrange the extension cord so that it will not drape over
the countertop or tabletop where it can be pulled on by
children or accidentally tripped over.

HOW COOL MIST WORKS

Your Bionaire

®

Cool Mist humidifier draws dry air through

the rear air intake grill area. This air is then passed
through a moisture–laden wick filter, which retains the
minerals and deposits in the water. The resulting moist air
is directed back into the room from the top air grill.

NOTE:

This humidification system provides a cool, invisible

moisture output. It is normal not to see the mist.

NOTE:

A humidity level below 20% can be unhealthy and

uncomfortable. The recommended humidity level is
between 40%-50%.

PRE-OPERATING INSTRUCTIONS: 

1. Be sure the unit is disconnected from the electrical

outlet and the power switch is in the OFF position.

2. Lift off the humidifier housing and the water tank (see

Fig. 1). Check to see that the circular, extended life filter
is installed correctly around the filter supports in the
base (see Fig. 2). Replace the humidifier housing.

3. Twist off the tank cap by turning counter-clockwise and

fill the water tank with cool, tap water. Replace the tank
cap by firmly turning clockwise and then replace the

4. Insert a new filter into the filter support in the base (Figure 2).
5. Replace the main housing and then the tank.
6. Repeat Operating Instruction steps.
It will take about 30 minutes for the humidifier to reach
maximum output.

NOTE:

You can purchase replacement filters (model

BWF64) at a local retailer, by calling 

1-800-253-2764

,

filling out the accessory card, or by visiting
www.bionaire.com It is recommended that a replacement
filter is purchased for uninterrupted use.

CLEANING AND MAINTENANCE:

Humidifiers provide comfort by adding moisture to dry,
heated indoor air. To get the most benefit from the
humidifier and avoid product misuse, follow all
instructions carefully, specifically the operation, care and
maintenance guidelines. Please note this is an electrical
appliance and requires attention when in use.

In addition, if you do not follow the recommended care
and maintenance guidelines, micro-organisms may be
able to grow in the water within the humidifier's reservoir.

Daily Maintenance:

1. Before cleaning, set control to the OFF position and

unplug the unit from the electrical outlet.

2. Lift off the tank and the housing of the humidifier.
3. Carry the base and the tank to the sink, remove the

wick filter, then drain and rinse the base and tank
thoroughly to remove any sediment or dirt. Wipe clean,
and dry with a clean cloth or paper towel.

4. Put the filter back in the filter supports, replace the

housing, then refill the tank with with cool tap water as
instructed in Pre-Operating Instructions. Do not overfill.

5. If moisture forms on walls or windows, turn off the

humidifier. Weekly Maintenance:

Weekly Maintenance:

To Remove Scale

1. Repeat steps 1-3 above and remove the circular wick filter.
2. Clean the base by partially filling the base with one-8

oz. Cup of undiluted white vinegar. Let solution stand
20 minutes, cleaning all interior surfaces with a soft
brush. Dampen a cloth with undiluted white vinegar and
wipe out entire base to -remove scale.

3. Rinse with clean warm water to remove scale and the white

vinegar solution before beginning to disinfect the tank.

To Disinfect Tank:

1. Fill tank with 1 teaspoon of chlorine bleach and 1

gallon of water.

2. Let the solution stand for 20 minutes, swishing every

few minutes, wet all surfaces.

2. When the water tank is empty and the water in the

base is almost empty, you need to refill the tank. The
fan will continue to run to help dry the humidifier. Shut
off and unplug the unit. Please follow the Daily Cleaning
Instructions. Filter Check™ (located on the front of the
housing near the grill) will let you know when the filter
needs replacing. Refill the tank as directed in Pre-
Operating Instructions.

3. Plug into the electrical outlet. Turn the power ON.

IMPORTANT:

If you do not plan to use your humidifier for two or more
days, make sure any residual water is drained from the
water tank, base and wick filter to prevent any algae or
bacteria growth in stagnant water.

NOTE:

This humidifier holds about 1.4 gallons of water

between the tank and the base and will produce up to 3
gallons of moisture over a 24-hour period, depending on
the room humidity and temperature.

REPLACING THE FILTERS

Through normal use, water borne minerals and sediment
become trapped in the wick filter. The harder your water,
the greater the amount of minerals in the water, and the
more often you will need to change your filter.

You will be able to monitor the life of the filter in your
humidifier by checking the Filter Check™ Indicator. When
the unit is off, the Filter Check™ Indicator will read in the
OFF position. After 60 minutes of use, Filter Check™
Indicator (refer to Figure 3 for close-up
of indicator) will move from the OFF
position and indicate your filter condition.
A brand new filter will register in the blue
section reading GOOD filter. After
frequent use of your humidifier, the
Filter Check™ Indicator will let you know
when the filter needs to be changed.

When the needle is in the CHANGE section, this means
the proper amount of moisture is not getting into your air
due to the excessive minerals and sediment that have
become trapped on your filter. At this point, you should
replace your filter. It is important to change your filter as
indicated to obtain stated performance level.

TO REPLACE THE FILTER, FOLLOW THE STEPS
BELOW:

1. Be sure the humidifier is switched OFF and

disconnected from the electrical outlet. 

2. Remove the tank and main housing to access the base

tray (see Figures 1 and 2).

3. Discard the old filter and follow weekly cleaning instructions.

3. Empty the tank after 20 minutes, and rinse well with

water until the bleach smell is gone. Dry with a clean
cloth or paper towel.

4. Check the Filter Check™ Indicator to see if it is time to

see if it is time to replace the filter. Depending on your
water hardness, it may be necessary to change the
filter every 1-2 months.

5. Refill the water tank with fresh tap water, replace the

housing of the humidifier, and then the water tank. Plug
into the electrical outlet, and turn the power ON. 

NOTE:

Please be sure to wipe up any spilled cleaning

solution as it may damage furniture or floors.

Storage Instructions

If your humidifier will not be in use for two days or more,
or at the end of the season follow these instructions.

1. Clean and dry the humidifier thoroughly as per the

“Weekly Maintenance” instructions.

2. Let the humidifier dry completely before storing. Do not

store with water inside the base or water tank. 

3. Remove the tank cap. Do not store with the tank cap

in place.

4. Store in a cool dry location.

SERVICE INSTRUCTIONS

1. Do NOT attempt to repair or adjust any electrical or

mechanical functions on this unit. Doing so will void
the Warranty. The inside of the unit contains no user
serviceable parts. All servicing should be performed
by qualified personnel only.

2. If you need to exchange the unit, please return it in its

original carton, with a sales receipt, to the store where
you purchased it. If you are returning the unit more than
30 days after the date of purchase, please see the
enclosed Warranty. 

3. Should your humidifier require service, please call 

1-800-253-2764

in North America for further

assistance. 

4

.

If you have any other questions or comments, feel
free to write to us or 

visit our website 

www.bionaire.com

The Holmes Group, Inc.
Consumer Service Department
13052 Jurupa Avenue
Fontana, CA 92337

Read instructions before operating. 

Retain for future reference.

Instruction Leaflet

INFO-LINE 

If after having read this leaflet, you have any questions 

or comments on your humidifier, 

call

1-800-253-2764

in North America.

WARRANTY

The Manufacturer warrants to the original retail purchaser,
for ONE (1) YEAR from the date of original purchase,
either to repair or replace at its option, without charge
(parts and labor), any supplied or manufactured part of
this humidifier which, upon inspection by an authorized
service center, proves to have failed in normal use due to
defects in material or workmanship, or, at its option, to
replace the unit. 

Operation under conditions other than those
recommended or at voltages other than the voltage
indicated on the unit, or any attempts by unauthorized
personnel to service the unit or modify it, will render the
guarantee void. 

The Manufacturer shall not be liable for any personal
injury, property damage or any incidental or consequential
damages of any kind, resulting from defects, malfunctions,
misuse, improper installation or alteration of the product.

THE MANUFACTURER EXPRESSLY DISCLAIMS ALL 
RESPONSIBILITY FOR CONSEQUENTIAL 
DAMAGES OR INCIDENTAL LOSSES CAUSED 
BY USE OF THIS PRODUCT. 

The provisions of this Warranty are in addition to, and not
a modification of, or subtraction from the statutory warranties
and other rights and remedies contained in any
applicable legislation and to the extent that any such
provision purports to disclaim, exclude or limit any such
statutory warranties or other rights or remedies, such
provisions shall be deemed to be amended to the extent
necessary to comply therewith.

FOR WARRANTY SERVICE, PLEASE CALL 
1-800-253-2764 IN NORTH AMERICA.

A consumer service representative will help determine
which is the best procedure in order for your humidifier to
be repaired.

KEEP THIS NUMBER FOR FUTURE REFERENCE.

Bionaire

®

, the Bionaire

®

logo ,Filter Check™ and Clean-

Away™ are trademarks of The Holmes Group, Inc.

Printed In China 

BCM1745C05EFM1

Figure 1

A. Carry Handle
B. Humidifier Tank
C. Filter Check

Indicator 

D. Humidifier

Housing

E. 3-Speed

Humidity Control

F.  Humidifier Base 

A

D

B

E

F

C

Figure 2

A

C

B

A. Circular

Extended
Life Filter

B. Humidifier

Base

C. Circular Filter

Supports

Figure 3

Trouble Shooting for your Cool Mist Humidifier

Trouble

• Mist output minimal to

none.

• Water leaks from water 

reservoir.

• Water Filter turns brown.

• Film on water reservoir.

• Water cloudy.

• Humidistat cycles on/off.

• Very tight reservoir cap.

Probable Cause

Filter has not 
absorbed water.

Mineral buildup in base.

Humidistat is set too low.

Wick Filter needs 
to be replaced.

Normal operation.

Rubber O-ring is missing
or improperly placed.

Tank Cap not 
tight enough.

Your filter needs  
to be changed.

In areas with hard water
your wick filter will need
to be changed frequently.

Mineral deposits cause 
film on tank to build up.

Filter needs  
to be replaced.

Using warm water
to refill water tank.

Humidifier is reacting 
to room humidity level.

Over tightened.

Solution

✔ 

Wait 15 minutes before 
starting humidifier.

Regular cleaning of tray
after each use will help
keep the unit functioning
properly.

Set the humidistat to 
high.

✔ 

Replace your wick filter 
(BWF64) by calling 
1-800-253-2764, or visit 
www.bionaire.com.

Mist is invisible.

Check to see if inlet or 
outlet grills are blocked.

✔ 

Remove tank 
cap then replace 
or reposition ring.

Tighten the 
tank cap.

✔ 

Replace your wick filter 
(BWF64) by calling 
1-800-253-2764, or visit 
www.bionaire.com.

Use Clean Away

TM

Solution

(DMS216), to order call
1-800-253-2764, or visit
www.bionaire.com.

Replace your wick filter
(BWF64) by calling 
1-800-253-2764, or visit
www.bionaire.com.

Refill using cool water.

Set the humidistat to a
higher or lower setting.

Add liquid soap or 
petroleum jelly to cap 
gasket to ease opening.

Fig. 4

Fig. 5

FREQUENTLY ASKED QUESTIONS

QUESTION

• What are the variables that 

affect run time?

• How do I remove film on 

water tank?

• How can I extend the run 

time?

ANSWER

The estimated run time for this humidifier is based on 
average room conditions.  The actual run time of your 
humidifier is dependent on numerous vari ables such 
as:
1. Air exchange in the room where the humidifier is

placed.

2. Room construction where the humidifier is placed.
3. Temperature of the room where the humidifier is

placed.

4. Humidity levels in the room where the humidifer is

placed.

5. Movement of occupants and the opening and

closing of doors in the room where the humidifier is
placed.

6. Home furnishings in the room where the humidifer is

placed.

See Daily Maintenance instructions.  Regular cleaning 
is recommended.

Run your unit on the lowest setting.

If your unit has electronics, set it to your desired humid
ity level.The unit will turn on and off, which will extend 
the run time.

Fill the tank all the way full, place  it on the base, let 
the water empty into the base until it stops bubbling, 
then refill the tank full again. This ensures maximum 
water capacity and will extend run time.

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