Muji AD-SD1-SG User manual

User Manual
For your safety and
enjoyment, please read and
understand this manual
before using your product.
After reading this manual,
store in a safe and handy
location for future reference
regarding any questions that
may arise.
Ultrasonic
Aroma Diffuser AD-SD1-SG
Table of Contents
• Introduction . . . . . . . . . . . . . . . . . . 1-5
• About Essential Oils. . . . . . . . . . . . . . 6
• Enjoying Your
Ultrasonic Aroma Diffuser. . . . . . . . . 6
• Components . . . . . . . . . . . . . . . . . . . . 7
• Part Names . . . . . . . . . . . . . . . . . . . . . 8
• Using Your Aroma Diffuser . . . . . 9-14
• Cleaning Up Spills . . . . . . . . . . . 15-16
• Care/Storage. . . . . . . . . . . . . . . . 17-19
• Disposal . . . . . . . . . . . . . . . . . . . . . . 20
• Troubleshooting . . . . . . . . . . . . . 20-21
• Specifications. . . . . . . . . . . . . . . . . . 22
2020.3
Version 3.0 A hard copy of Instruction manual is
available upon request to staff.

Introduction
Mark/Symbol Meaning
This symbol indicates a matter requiring user caution.
This symbol indicates a prohibited action.
Caution
Prohibited Action
-1-
For your safety, please read and follow all instructions
This symbol indicates a matter which, if ignored, may lead to major
injury or death in the event of the improper usage of this product.
Before Using This Product
Do Not
Modify
Do not attempt to modify this
product.
Do not allow anyone other than a
qualified service technician to
disassemble or repair this product.
→Attempting to modify this
product may lead to fire,
electrical shock, injury, or
product malfunction.
Prohibited
Never attempt to insert pins,
wires, or other foreign objects
into the the mist diffuser outlet
or seams/gaps in the product.
→Doing so may lead to
electrical shock or injury.
Prohibited
Children shall not play with the
appliance.
• This product is a household electrical appliance.
• This product is not intended for use as interior room lighting.
• This product can be used by children aged from 8 years and above and persons with
reduced physical, sensory or mental capabilities or lack of experience and
knowledge if they have been given supervision or instruction concerning use of the
appliance in a safe way and understand the hazards involved.
This User Manual includes symbols and icons to warn the user and prevent potential
risks that may result from improper usage of this product. These symbols and marks have
the following meanings.
WARNING

Prohibited
Do not damage the AC adapter power
cord, bend the cord forcefully, pull, or
twist the cord. Do not allow the cord
to come close to hot components, and
do not set heavy items on top of the
AC adapter cord. Do not pinch the
cord between other objects or attempt
to modify the cord in any way.
→Doing so may result in
damage to the cord, fire, or
electrical shock.
Wet Hands
Prohibited
Prohibited
Do not use this product if the
AC adapter power cord or plug
become damaged, or if the
plug does not sit firmly in the
electrical outlet socket.
→Doing so may result in
electrical shock, short circuit,
or fire.
Do not attempt to
insert/remove the AC adapter
with wet hands.
→Doing so may lead to
electrical shock or injury.
Wet Use
Prohibited
Prohibited
Do not submerge or
pour/splash water on this
product or its AC adapter.
Do not use or store in locations
subject to high humidity such
as bathrooms, changing rooms,
green houses, etc.
→Doing so may result in short
circuits, electrical shock, fire,
or product malfunction.
Never touch the ultrasonic
diaphragm in this product.
→Never directly touch, damage,
or push on the ultrasonic
diaphragm. Doing so may
cause an accident or
malfunction.
-2-
Required
Replace water in the water tank with
clean tap water on a daily basis.
Periodically clean the water tank,
and always keep the water tank in a
clean condition.
→Failure to do so may result in
the growth of bacteria or
mould, or may result in bad
odours or other conditions that
may be harmful to your health.
In rare cases, mould or
bacteria could lead to
hypersensitive reactions,
depending on the condition of
the person or pet in question.
Prohibited
Do not install or use within the
reach of children or pets.
→Doing so may result in the
product tipping over or in
other accidents such as
electrical shock or injury.

Using This Product
After Use
Immediately unplug the AC adapter
from the electrical outlet if you notice
an abnormal odour, abnormal sound,
if the adapter or diffuser unit becomes
unusually hot, or if you notice some
other abnormal behaviour.
→ Continuing to use this product
despite abnormal operations may
result in fire, electrical shock or
other injury, or malfunction.
When noticing abnormal
operation of your product,
immediately stop using the
product and consult your retailer.
Unplug the AC adapter from the
electrical outlet when not in use.
→Insulation deterioration may
result in short circuit, fire, or
electrical shock.
Prohibited
Required
Periodically dust off the power plug.
→Dust build up can result in
insulation failure due to
humidity, fire, electrical
shock, or other accident.
Required
Perform care and drain water
from the product by correctly
following the directions and
methods described in this
User Manual.
→Improper disposal of waste
water may result in water
entering electrical components,
causing fires, electrical shock,
or short circuits.
This device is not a medical
inhaler or vaporizer.
Do not intentionally inhale
mist emitted from the diffuser
outlet directly.
→Doing so may be a hazard to
your health.
Do not use this product for
any other purpose than to
emit and diffuse aroma.
Prohibited
Only use a neutral detergent
when caring for this product.
→Failure to do say may result
in detergent remaining inside
the water tank, causing toxic
gas or product malfunction.
Prohibited
Cleaning and user maintenance
shall not be made by children
without supervision.
-3-
Unplug
the Product
Unplug
the Product

Prohibited
Do not use this product in the
following locations.
→
Doing so may result in product
breakage, malfunction, or
damage to surrounding areas.
・ Do not place in a location that allows
mist emitted from the product to come
into direct contact with furniture,
clothing, curtains, walls, documents or
other paper goods, ceiling, etc.
・ Do not place in a location under direct
sunlight, locations subject to extreme
heat such as heaters or sources of
flame, or locations subject to direct
wind such as near air conditioners.
・ Do not place near electronic appliances,
precision equipment, etc.
・ Do not place on soft cushions, shag/pile
carpets, etc.
・ Do not place on unstable/non-flat surfaces.
-4-
This symbol indicates a matter which may lead to user injury or
physical property damage.
Before Using This Product
Using This Product
Required
Always use clean,
room-temperature tap water in
this product.
→Using warm/hot water may
result in warping or product
malfunction.
Required
When not using the product for
an extended period of time,
follow the procedures as
detailed under Care/Storage
before resuming usage.
Always hold this the diffuser
unit by its lower section when
lifting it to move.
→Failure to do so may result in
the diffuser unit falling or
tipping over. Heat
Caution
Do not touch the diffuser unit
while it is in operation or
immediately after turning it off.
→
The diffuser unit may become
hot during operation, or may be
hot immediately after turning it
off. Touching the mist for long
periods of time or touching the
diffuser unit may result in burns.
Required
CAUTION

Prohibited
Do not block the mist diffuser
outlet or the air intake located
at the bottom of the product.
→Doing so may prevent proper
function or result in damage,
improper operation, excessive
heat build up, or malfunction.
Prohibited
Prohibited
Never attempt to refill this
product during operation.
→Doing so may result in spilling
hot water or spouting mist.
-5-
Required
Always use essential oils with
this product, and follow the
instructions below.
→This product is only to be
used with the essential oils
from 100% natural extracts.
Never use synthetic perfumes
or similar chemicals with this
product. Never use more than
2 to 3 drops (approx. 0.1 to
0.2ml) of essential oil per
100ml of water. Do not use
essential oils excessively. The
use of other substances may
result in toxic gas or fire risk.
Required
After use, dispose of any water
left in the water tank.
→Failure to do so may result in
malfunction or damage due
to water freezing, or may lead
to the growth of bacteria, etc.
Do not use this product continually
for periods in excess of 180 minutes.
→ Doing so may result in excessive
heat in the ultrasonic diaphragm
and product malfunction.
Required
When not using this product for
an extended period of time,
unplug from the electrical outlet.
When storing, follow the
procedures detailed in
Care/Storage, allow the product
to dry, then place in storage.
After Use
Prohibited
Do not remove the outer cover
while the product is in operation.
→Water or essential oil may
spill, causing damage to the
surrounding area or resulting
in product malfunction.
Prohibited
Never turn this product on
when the water tank is empty.
→Doing so may result in damage
to the ultrasonic diaphragm,
malfunction, or leakage.

-6-
About Essential Oils
●Always use essential oils from 100%
natural plant extracts with this product.
Perfumes, aroma oils containing synthetic
perfumes, oils containing impurities or
solids, etc. will result in product
malfunction.
Read and follow the cautions concerning
the use of essential oils below.
●When changing the type of essential oil,
you may be concerned with lingering
aroma. In this case, follow the procedures
in Care/Storage to clean the water tank.
●Use two to three drops (0.0.1ml-0.2ml) of
essential oil per 100ml of water (full tank).
Adding essential oils to an empty (or low)
water tank may result in product
malfunction or improper operation.
Allowing essential oil to come into direct
contact with the ultrasonic diaphragm may
result in product malfunction or improper
operation.
●Be careful not to allow essential oil to come
into direct contact with the diffuser unit
surfaces.
Doing so may result in malfunction or may
melt the product exterior.
Operation Time
■Maximum continuous operating time is
three hours.
*
Mist volume may fluctuate and operating time
may be shorter depending on water temperature,
room temperature, and room humidity.
(Recommended Usage Environment: Room
temperature 15°C-25°C, humidity 50%-60%)
Enjoying Your Ultrasonic Aroma Diffuser
■Timer has four settings: 180 minutes,
120 minutes, 60 minutes, and 30 minutes.
■Product will automatically shut off at
the end of the time set.
Timer
■The LED light has two settings.
Each press of the light switch cycles
the light through high, low, and off
settings.
* When using with mist function, the LED
light will shut off at the end of the timer or
when the water tank becomes empty.
LED Light

-7-
Components
・
AC adapter
・
Outer cover
・
Diffuser unit
・
Inner cover
・
Water measuring
cup (100ml)
・
User Manual
(this manual)

Part Names
DC jack
(Bottom)
Water tank
(Bottom) Air intake
(Interior houses a fan)
Water outlet
Timer
Light switch
Alignment
marks
Mist switch
(Protrusion)
Cable guide
Water outlet
Air outlet
Front
Back
-8-
Diffuser outlet
Outer cover
Inner cover
Interior
View
Diffuser unit
AC adapter Power cord
DC plug
Ultrasonic
diaphragm
*Located in the
bottom centre of
the water tank

-9-
Using Your Aroma Diffuser
* Dispose of this product and packaging materials in
accordance with your local regulations.
1. Using Your Aroma Diffuser 2. Remove the small box
3. From the small box, remove the AC Adapter and Water Measuring Cup

-10-
・Push the tab in the centre
of the plug installation
area toward the direction
indicated by PUSH.
・Insert the top end of
the plug while the tab
is pushed to the side.
・Next, insert the bottom
end of the plug while the
tab is pushed to the side.
・Push down until
you hear a click.
4. Insert plug into AC adapter

-11-
・Gently twist the cover anticlockwise (as seen
from the top) to remove.
*Never touch the ultrasonic diaphragm
inside the water tank directly. Doing so
may result in malfunction or leakage.
5. Remove the outer cover of
the diffuser
・Connect the included AC adapter to the DC
jack on the bottom of the diffuser unit.
Place the AC adapter cord through the
cable guide. Set the product on a stable,
level surface.
*Do not allow the diffuser unit to sit on
the AC adapter cord.
7. Connect the power cord
6. Turn the Diffuser Unit over
Cable guide
DC jack

-12-
8. Fill with water and essential oil
* Never plug in this
product when the
water tank is empty.
Doing so may result
in damage to the
ultrasonic diaphragm,
malfunction, or leak.
9. Connect the
AC adapter to
an electrical outlet.
・Be careful not to spill water while filling the water tank.
・Add a few drops of essential oil to the water in the water tank.
* Always use the attached measuring cup (100ml) to fill the
water tank.
* Never attempt to pour water in through the diffuser outlet or
fill the water tank directly from a tap.
Doing so may result in product malfunction.
* Fill the tank to a maximum of 100ml or less.
Mist will not operate normally if the tank is overfilled (100ml)
* Do not lean the diffuser unit at an angle when filled with water.
Doing so may allow water to enter inside the unit through the
air outlet resulting in malfunction.
* Standard for essential oil is between two and three drops
(approximately 0.1 to 0.2ml) for 100ml of water (full tank).
* Mist will not operate normally if the outer cover and inner
cover are not aligned or there is a gap between the outer
cover and the body of the diffuser unit.
* When removing the outer cover while there is water in the
water tank, always set the diffuser unit on a desk or
similar surface. Do not tilt the diffuser at an angle.
・
Confirm that the outer cover and
inner cover are properly positioned.
・ After replacing the outer cover, gently
turn clockwise (as seen from the top).
・ Turn the outer cover until the
alignment marks on the outer
cover and the main unit align.
10. Replace the cover
Alignment
marks

-13-
11-1. Using Aroma
* If mist stops during operation, use a cotton swab or similar
to clean the inner cover diffuser outlet and air intake.
* Mist may not be visible depending on the temperature,
humidity, or other surrounding factors.
Even if the mist is difficult to see, there is no malfunction
as long as mist is being generated within the water tank
and the fan is operating (you can hear the fan motor).
①Push the mist switch
on the diffuser unit.
Mist will begin to emit
from the diffuser.
②Push the mist switch
again to change
settings to 120 minutes,
60 minutes,
30 minutes, or off.
* The diffuser is off when first plugged in.
* Pushing the mist switch when the water tank is empty (or low)
will result in shutting off automatically after three beeps.
(Alarm function when tank is empty)
* When water runs out during operation, the diffuser will
beep three times and automatically shut off.
* Due to water temperature and water quality conditions,
etc., the diffuser is set to emit a smaller volume of mist
when first turned on. The volume will gradually increase
and stabilize.
Mist switch

-14-
* Mist volume may increase during the summer or conditions
with higher temperatures and humidity. In some
circumstances, a water tank filled full (100ml) may empty
prior to the completion of the 180-minute timer, shutting off
the diffuser. This is not a malfunction.
Mist volume may decrease during the winter or conditions
with lower temperatures and humidity. Water may not be
consumed as quickly as normal, but this is not a malfunction.
* Mist may drop from the front of the diffuser outlet, causing
condensation around the diffuser.
In this case, place a towel or similar below the diffuser
outlet to absorb moisture.
③To stop the mist, either
push the mist switch
until it cycles to the off
setting or hold down
the mist switch for at
least one second.
(At any setting, holding
the mist switch for one
second or longer will
make the diffuser beep
and shut off the mist.)
11-2. Using the light
①Push the light switch.
The light will turn on.
* The LED light has two settings: High and Low.
* The LED light will begin at the High setting.
②Push the light switch
again to cycle through
Low and Off settings.
* The LED light has two
settings: High and Low.
* At the end of a timed session, both the diffuser and the LED
light will shut off.
* The LED light will remain on, even when you manually cycle
through settings to turn the diffuser off.
Remember to turn the LED light off when not in use.
Continue pushing the LED light switch to turn the light off.
However, the LED light will also shut off when holding the mist
switch down to turn off the diffuser.
Light switch

-15-
Cleaning Up Spills
If a spill happens due to tipping over or tilting the diffuser unit while there is water in the water
tank, water may enter the internal components of the diffuser, resulting in a malfunction.
If a spill happens, immediately perform the following procedures to drain the water inside.
* Be sure to unplug the AC adapter from
the electrical outlet and turn off the
diffuser before performing any
procedures.
* Never plug in/unplug the AC adapter
with wet hands.
・After removing the AC
adapter cord from the
cable guide, remove the
AC adapter plug from the
DC jack.
・Gently turn the outer cover anticlockwise (as seen from the
top) , and then remove the cover.
* When removing/replacing the outer cover, always set the
diffuser on a stable horizontal surface. Do not tilt the diffuser
unit at an angle.
* Water droplets will adhere to the inside of the outer cover.
Accordingly, remove the cover in a location not susceptible to
water damage. Set down a towel or similar to catch water droplets.
Do not allow water to enter the air outlet.
1. Unplug the AC adapter from the
electrical outlet
2. Remove the AC adapter plug from
the DC jack
3. Remove the outer cover

-16-
5. Dry the diffuser
・Lightly shake the diffuser unit to allow
water to pour out of the bottom water
outlet. Allow the diffuser to dry thoroughly.
* Allow 24 hours for the diffuser to dry.
* Never use a hair dryer or similar to
attempt to dry the diffuser.
Allow the diffuser to air dry.
4. Dispose of water in the water tank
・Always tilt the diffuser unit in the
direction of the water draining mark as
indicated to pour out water remaining in
the water tank.
* Never tilt the diffuser toward the air
outlet when pouring out water.
If water enters through the air outlet, it
may cause a malfunction.
Water outlet
Water outlet

-17-
Care/Storage
For your safety, regularly perform care and maintenance for your Aroma Diffuser.
Perform the following procedures.
Perform these procedures every five to six uses or every two to three days as a rule.
* Be sure to unplug the AC adapter from
the electrical outlet and turn off the
diffuser before performing any
procedures.
* Never plug in/unplug the AC adapter
with wet hands.
・After removing the AC
adapter cord from the
cable guide, remove the
AC adapter plug from the
DC jack.
・Gently turn the outer cover anticlockwise (as seen from the
top), and then remove the cover.
* When removing/replacing the outer cover, always set the
diffuser on a stable horizontal surface. Do not tilt the diffuser
unit at an angle.
* Water droplets will adhere to the inside of the outer cover.
Accordingly, remove the cover in a location not susceptible to
water damage. Set down a towel or similar to catch water
droplets.
Do not allow water to enter the air outlet.
1. Unplug the AC adapter from the
electrical outlet
2. Remove the AC adapter from the
DC jack
3. Remove the outer cover

-18-
・Always tilt the diffuser unit in the direction of the
water draining mark as indicated to pour out water
remaining in the water tank.
* Never tilt the diffuser toward the air outlet when
pouring out water.
If water enters through the air outlet, it may cause
a malfunction.
4. Dispose of water in the water tank
5. Clean the ultrasonic diaphragm and water tank
・Wipe the water tank using a clean cloth dampened in
a solution of warm water and neutral detergent;
wring the cloth out well before use.
・Use a cotton swab or similar to clean the ultrasonic
diaphragm located at the bottom of the water tank.
・After cleaning the tank and ultrasonic diaphragm, fill
the tank with tap water and run the diffuser on a
30-minute timer.
・After the timer ends, pour out the water and wipe
dry with a clean dry cloth.
* Never directly touch the ultrasonic diaphragm at the bottom of the water tank with your
hand. Never subject the ultrasonic diaphragm to strong pressure.
* Any residual chlorine-based detergent, acidic detergent, or enzyme-based detergent in the
diffuser may result in the formation of toxic gas. Accordingly, always use a neutral detergent.
* Always clean the interior of the water tank every two to three days. Ensure that water
and parts are always kept clean.
Using the diffuser without regular cleaning may result in water stains or mineral build
up, resulting in degraded performance.
* Never use benzene, paint thinner, alcohol, or other chemicals to clean your diffuser.
Such chemicals may damage parts, wear down graduation marks, etc.
* A dirty ultrasonic diaphragm may result in malfunction or improper operation.
Periodically clean the ultrasonic diaphragm.
Water outlet
Ultrasonic
diaphragm

-19-
6. Clean the outer cover and inner cover
・If essential oil comes into contact with the
outer cover or inner cover, or the covers
become dirty, wipe it off with a clean cloth
that is soaked in diluted neutral detergent
in lukewarm water and wrung well.
・To remove dirt near the diffuser outlet,
remove the inner cover for cleaning.
* Be sure the outer cover and inner cover
are completely dry before use.
<How to Remove the Inner Cover>
7. Storage
* Do not store this product in locations
subject to high temperatures or humidity.
* Before using this product after a period
of storage, clean the interior of the water
tank using a neutral detergent.
Place finger here and
gently pull.
<How to Replace the Inner Cover>
Hold here
and gently
push until
A and B
snap into
place.
Line up the
outer cover
outlet and
inner cover
protrusion.
A
B