
Smart Hybrid Ultrasonic Humidifier
LV600S Product Series
Model Line: LUH-A602S
Model: LUH-A602S-WUS
Questions or Concerns?
Please contact us Mon–Fri, 9:00 am–5:00 pm PST/PDT
at [email protected] or at (888) 726-8520.
USER MANUAL

2
Table of Contents
Package Contents
Specifications
Safety Information
Getting to Know Your Smart Humidifier
Controls
Getting Started
Filling & Refilling
VeSync App Setup
Using Your Smart Humidifier
Important Tips
Care & Maintenance
Troubleshooting
Warranty Information
Customer Support
2
2
3
5
7
8
9
10
11
16
16
21
26
27
Package Contents
Smart Ultrasonic Humidifier
Aroma Pad (1 Pre-Installed)
Absorption Pad (1 Pre-Installed)
Water Filter Sponge (1 Pre-Installed)
Cleaning Brush
User Manual
Quick Start Guide
Specifications
Power Supply AC 120V, 60Hz
Rated Power 280W
Water Tank
Capacity
1.58 gal / 6 L
Max Cool
Mist Output
300 mL/h
Max Warm
Mist Output
550 mL/h
Max Run Time 50 hours on low mist
setting
Note: The humidifier
may run for a longer or
shorter time depending
on the environmental
temperature and
humidity.
Noise Level Lowest: < 28dB (Low
Cool Mist)
Highest: < 40 dB (High
Warm Mist)
Eective
Range
430–753 ft² / 40–70 m²
Dimensions 11.6 x 7.7 x 11.3 in /
29.4 x 19.5 x 28.8 cm
Weight 6 lb / 2.7 kg
1 x
3 x
3 x
2 x
1 x
1 x
1 x
Note: To access additional smart humidifier
functions, download the free VeSync app
(see page 10).

3
SAFETY INFORMATION
• Only use the humidifier as described in
this manual.
• Place the humidifier and cord so that it
will not be knocked over. Do not place
near large pieces of furniture or in high-
trac areas.
• When not in use, turn the humidifier
o and disconnect from power by
removing the plug from the outlet.
• Do not use the humidifier in wet
environments.
• Keep the humidifier out of reach from
children.
• Do not open the base or remove the
water level sensor for self-servicing.
• Always unplug your humidifier from
the power outlet before cleaning your
humidifier or detaching the water tank
from the humidifier base.
• Always make sure to place the
humidifier on a flat, level surface before
operation.
• Only fill the water tank with clean water.
Never fill the water tank with any other
liquids.
• Do not place the humidifier near
sources of heat, such as stovetops,
ovens, or radiators.
• Do not place the humidifier directly on
floors, carpets, or rugs.
To reduce the risk of fire, electric shock, or other injury, follow all instructions and
safety guidelines.
General Safety
• Do not use other items as replacement
parts for this product.
• Do not cover the nozzles while the
humidifier is on. Doing so may damage
the humidifier.
• Remove the water tank from the base
before moving the humidifier.
• Do not immerse the humidifier base,
power cord, or plug in water.
• Do not clean the humidifier immediately
after turning it o, especially if it has
been diusing warm mist. Allow the
humidifier to cool down completely
before cleaning.
• If the humidifier is damaged or is not
functioning properly, stop using it and
contact Customer Support immediately
(see page 27).
• This humidifier is not to be used by
persons (including children) with
reduced physical, sensory, or mental
capabilities, or lack of experience
and knowledge, unless they have
been given supervision or instruction
concerning use of the appliance by a
person responsible for their safety.
• Supervise children when they are near
the humidifier.
• Children should not clean or perform
maintenance on the humidifier without
supervision.
• Not for commercial use. Household use
only.
READ AND SAVE
THESE INSTRUCTIONS

4
• Ensure that the plug fits properly into a
polarized socket.
• Do not handle the power cord or plug
with wet hands. Keep the plug and power
cord away from liquids.
• Your humidifier has a polarized plug (one
prong is wider than the other), which fits
into a polarized outlet only one way. This
is a safety feature to reduce the risk of
electric shock. If the plug does not fit,
reverse the plug. If it still does not fit,
do not use the plug in that outlet. Do not
bypass this safety feature.
• If the power supply cord is damaged, it
must be replaced by Arovast Corporation
or similarly qualified persons in order to
avoid an electric or fire hazard. Please
contact Customer Support
(see page 27).
• Unplugging the power cord will disable
remote control of the humidifier and
temporarily disconnect the humidifier
from VeSync and other third-party apps.
This humidifier complies with all standards
regarding electromagnetic fields (EMF).
If handled properly and according to
the instructions in this user manual, the
appliance is safe to use based on scientific
evidence available today.
Power & Cord
Electromagnetic Fields (EMF)
SAFETY INFORMATION (CONT.)
• Do not add essential oils,
supplemental water treatment
liquids, or water filters into the
water tank or base chamber. This
will damage the humidifier and
cause leaks. Only add essential
oils to the aroma pad.
Caution: Risk of Leaks and
Electric Shock

5
GETTING TO KNOW YOUR
SMART HUMIDIFIER
A. Nozzles
B. Top Cover
C. Handle
D. Water Tank
E. Water Filter
F. Water Filter Sponge
G. Base
H. LED Display
I. Control Panel
J. Aroma Box
K. Aroma Pad
L. Humidity Sensor
(In Aroma Box
Underside
of water tank
Top view of
inner chamber
Front
Back
Compartment)
M. Mist Tube
N. Mist Channel
O. Noise Silencer
P. Absorption Pad
Q. Air Outlet
R. Float Brackets
S. Inner Chamber
T. Power Cord
U. Water Outlet Valve
V. Heating Element
W. Transducer
X. Float
A
M
N
V
X
W
O
P
B
C
D
U
G
E
F
J
L
K
H
Q
S
R
T
I
Function Diagram

6
H. On/O Button
I. Mist Level Button
J. Humidity Level Button
K. Timer Button
L. Warm Mist Button
M. Sleep Mode Button
A. Sleep Mode Indicator
B. Timer Indicator
C. Wi-Fi® Indicator
D. No Water Indicator
E. Relative Humidity (RH) Percentage
F. Warm Mist Setting Indicator
G. Mist Level Indicator
H M
I L
J
G F
A C
B
D
E
K
Indicators
Buttons
GETTING TO KNOW YOUR SMART HUMIDIFIER (CONT.)
Low Mist
Medium Mist
High Mist
Heat O (Cool Mist)
Low Heat
Medium Heat
High Heat
Mist Level Indicator (Blue) Warm Mist Indicator (Orange)

7
CONTROLS
On/O Button
• Press to turn the humidifier
on/o.
• Press and hold for 5
seconds to pair with the
VeSync app. See the
VeSync in-app instructions
for more information.
• Press and hold for 15
seconds to reset the
humidifier. This will restore
the humidifier’s default
settings and disconnect it
from Wi-Fi® and the VeSync
app (see page 10).
Mist Level Button
• Press repeatedly to cycle
through mist level settings:
low, medium, and high mist.
• Press and hold for 3
seconds to turn the display
o. Press any button to turn
the display back on.
Warm Mist Button
• Cycles through warm mist
settings: low heat, medium
heat, high heat, and heat
o (see page 12).
Humidity Level Button
• Sets the relative humidity
(RH) percentage. The
humidifier will automatically
stop misting when the room
reaches the target humidity
level (see page 12).
• Press and hold for 2
seconds to cancel your
humidity level setting.
Timer Button
• Sets or cancels a timer
(see page 13).
Sleep Mode Button
• Press to turn Sleep Mode
on/o (see page 13).
Wi-Fi Indicator
• Turns on, o, or blinks to
indicate pairing status.
See the VeSync in-app
instructions for more
information.
No Water Indicator
• Blinks when there is no
water in the tank. After
this indicator blinks 10
times, the humidifier will
turn o. Refill the tank
and properly place it
on the base to use your
humidifier.
• Lights up when the
water tank is removed.
Remains on until the tank
is replaced.
Note: You can also use the VeSync app to control these functions, as well as additional
app-only features (see page 15).

8
GETTING STARTED
1. Remove all packaging.
2. Clean the water tank and water tank
cover before first use.
Note: Check to make sure that the
water filter is correctly in place. If not,
then rotate the filter clockwise to secure
it in place.
Note: The humidity sensor and an air
inlet are both located inside the aroma
box. Placing the humidifier away from
walls will also ensure that the inlet and
sensor function properly.
Figure 1.1
3. Choose a hard, flat location for the
humidifier at least 12 inches / 30 cm away
from any walls. The surface must be
water-resistant. [Figure 1.1]
• Do not place the humidifier directly
on floors, carpets, or rugs.
4. Mist should be directed away from walls,
furniture, bedding, and appliances. Avoid
letting too much mist fall on the side of
the humidifier with the aroma box, as this
may interfere with the sensor inside the
aroma box.
12 in /
30 cm
12 in /
30 cm

9
FILLING & REFILLING
1. Remove the water tank cover.
2. Use the handle to remove the tank
from the base. Fill the tank with room-
temperature water. Do not fill with hot
water.
Note: Make sure the water tank is clean
before filling.
Figure 2.1
Figure 2.4
Figure 2.3 Figure 2.5
Figure 2.2
Do not add water directly into the
base chamber. [Figure 2.2]
Do not add essential oils into the
humidifier. Only add essential oils
to the aroma pad. [Figure 2.4]
Do not use water treatment liquids
or third-party water filters in this
humidifier. [Figure 2.5]
Do not add water through the
mist tube. [Figure 2.3]
Caution
Note:
• We recommend using purified
water to fill the tank.
• Using tap water may result in a
white dust (dried minerals) on
surfaces.
3. Replace the water tank cover and place
the tank back on the base. [Figure 2.1]

10
VESYNC APP SETUP
1. To disconnect Wi-Fi, press and hold
for 15 seconds until the Wi-Fi
indicator turns o. This will restore the
smart humidifier’s default settings and
disconnect it from the VeSync app.
2. To reconnect, please follow the
instructions in the VeSync app for
adding a device.
1. To download the VeSync app, scan
the QR code or search “VeSync” in the
Apple App Store® or Google Play Store.
Wi-Fi Connection
Note:
• You can use the VeSync app to
connect your smart humidifier
to Amazon Alexa or Google
Assistant™. Follow the in-app
instructions to connect VeSync to
your voice assistant.
• Your phone must have
Location turned on while
your phone is connecting to
your smart humidifier. This
is required to establish the
Bluetooth® connection. You can
turn Location o after your smart
humidifier is finished connecting to
the VeSync app.
Note: Due to ongoing updates and
improvements, the VeSync app may be
slightly dierent than shown in the manual.
In case of any dierences, follow the in-app
instructions.
Note: For Android™ users, choose
“Allow” to use VeSync.
Note: You must create your own
VeSync account to use third-party
services and products. These will not
work with a guest account. With a
VeSync account, you can also allow
your family and friends to control your
smart humidifier.
2. Open the VeSync app. If you already
have an account, tap Log In. To create a
new account, tap Sign Up.
3. Follow the in-app instructions to set up
your smart humidifier.

11
USING YOUR SMART HUMIDIFIER
1. Plug in the humidifier. The humidifier will
light up, then turn o.
2. Press to turn your humidifier on. The
humidifier will start misting.
Figure 3.1
Note:
• Direct the nozzles away from any
furniture, walls, or other objects to
prevent them from getting wet.
• Do not inhale the mist directly from
the nozzles.
Note: Using the VeSync app allows you to
control your smart humidifier remotely and
access additional functions and features
(see page 15).
Note: If there is no water in the tank,
will flash 10 times, and the humidifier will
turn o. Fill the water tank (see Getting
Started, page 8).
Note: You can also set the humidifier
to automatically stop misting when the
room reaches a specific humidity level
(see Humidity Level, page 12).
3. Press repeatedly to cycle through
mist settings: Low, Medium, and High.
4. Rotate the nozzles to adjust the direction
of the mist. [Figure 3.1]
5. Optionally, use the controls or the
VeSync app to turn on warm mist,
activate Sleep Mode, and more (see
Controls, page7).
6. When your room has reached your
preferred humidity level, turn the
humidifier to a lower setting, or turn it o.
A comfortable humidity level is between
40% and 60%.
7. Press to turn your humidifier o.

12
• Press to turn on warm mist. Keep
pressing to increase the heat setting for
the mist, and to turn warm mist o.
• Caution: Mist may be hot. Do not place
your bare hands, face, or other exposed
skin over the nozzles while using warm
mist. [Figure 3.2]
• The humidifier may take 15 minutes to
warm up before producing warm mist.
• The warm mist function can be used
during Sleep Mode.
1. Press repeatedly to set a humidity
level between 40% and 80% Relative
Humidity (RH).
2. The display will flash 3 times to confirm
your selection, then return to showing
the current humidity percentage in the
room.
USING YOUR SMART HUMIDIFIER (CONT.)
You can customize the humidity level that
the humidifier will maintain. The humidifier
will automatically stop misting when the
room reaches the target humidity level.
Humidity Level
Warm Mist
Note:
• The humidifier will automatically
mist for 15 seconds after being
turned on, even if the room has
reached the set humidity level.
• Press once to see the selected
humidity level again. Keep pressing
to change the humidity level.
• You can still adjust the mist level,
the timer, and the warm mist setting
after setting the humidity level.
• The humidifier will not increase the
mist level when a humidity level
percentage is set, only stop misting
once the set humidity level is
reached. If you want the humidity in
your room to increase faster, set the
humidifier to high mist level.
Note:
• To cancel the set humidity level,
press and hold for 2 seconds,
which will set the humidity level to
“--”. The display will flash 3 times
to confirm, then return to showing
the current humidity percentage in
the room.
• When the humidity level is set to
“--” the humidifier will automatically
keep misting at the current mist
level until it runs out of water.
Figure 3.2
3. Once the humidity of the environment
reaches the humidity you set, the
humidifier will automatically stop misting.
4. The humidifier will continue detecting
the humidity level in the room. It will
start misting again when the humidity
drops to 5% below the set level.

13
USING YOUR SMART HUMIDIFIER (CONT.)
You can set an auto-shuto timer between
1 and 12 hours.
Sleep Mode changes the humidifier’s mist
setting to an automatic mode and turns o
the display lights.
Timer
Sleep Mode
• Press repeatedly to choose a time
in increments of 1 hour. When you stop
pressing , the display will flash 3
times and the timer will start.
• The humidifier will automatically power
o once the timer is finished.
• To cancel a timer, press and hold
for 3 seconds. You can also press
repeatedly until the display reads “--” or
use the VeSync app.
• Press to turn Sleep Mode on/o.
• Sleep Mode automatically turns o
warm mist to reduce noise. You can
press to turn warm mist back on.
• Sleep Mode uses the humidity sensor to
detect the relative humidity in the room
and automatically adjusts the mist level
to maintain 50–60% relative humidity.
• When Sleep Mode is on, you can press
any button to wake up the display. If you
stop touching the display, the display
will turn o again after 6 seconds.
• When Sleep Mode is on, you can use all
other settings except changing the mist
level or humidity level. If you change the
mist level or humidity level, Sleep Mode
will turn o.
• When Sleep Mode is turned on, the
humidifier will automatically mist for 15
seconds, even if the room’s humidity
level is over 60%.
Room Relative
Humidity
Automatic Mist Level
Under 50% High
50–55% Medium
55–60% Low
Over 60% Automatic Shuto
The display will automatically dim after 30
seconds of inactivity.
• To turn o the display, press and hold
for 3 seconds.
• To turn the display back on, press any
button.
Turning Off the Display

14
Your humidifier can be used for
aromatherapy.
Using the Aroma Box
1. Push the aroma box at the back of the
base and pull it out. [Figures 3.3]
2. Put 8–10 drops of essential oils on the
aroma pad. [Figure 3.4]
3. Place the aroma box back into the
humidifier.
4. Turn on the humidifier. The humidifier
will automatically diuse aroma when
used.
Note:
• Do not add essential oils, water
treatment liquids, or third-party water
filters into the water tank or base
chamber. Only add essential oils to the
aroma pad. [Figure 3.5]
• The aroma pads can be cleaned and
reused after diusing essential oils (see
Cleaning the Aroma Pad, page 19).
• This humidifier uses a small heat-based
aroma diuser. The aroma is intended
to be light.
Figure 3.3
Figure 3.4
Figure 3.5
USING YOUR SMART HUMIDIFIER (CONT.)

15
• The humidifier will remember your
settings for Mist Level, Humidity Level,
Warm Mist, and Wi-Fi settings when
turned o or unplugged, and will
resume those settings when turned
back on.
• The humidifier will not remember Sleep
or Timer settings, and the display will
automatically turn back on when the
humidifier is turned back on.
The humidifier will automatically turn o
when all of the water in the tank has been
diused. will show on the display and
blink 10 times before the humidifier turns
o. Fill the water tank (see Getting Started,
page 8).
If the tank has been removed from the base,
the humidifier will automatically stop misting.
will show on the display, and will turn o
once the tank is placed properly back on
the base.
The mineral absorption pads help reduce
mineral buildup (scale) inside the humidifier,
especially on the heating element.
Memory Function
Automatic Shutoff
Absorption Pads
Note: For information on replacement
aroma pads or absorption pads, see
page 19.
The VeSync app allows you to access
additional smart functions, including those
listed below.
VeSync App Functions
Remote Control From Your Phone
• Turn the humidifier on/o.
• Cycle through mist levels and heat
levels, and turn Sleep Mode on/o.
• Turn the display lights light on/o.
Monitor Humidity Levels
• Check current humidity levels in the
humidifier’s environment.
Set Timers & Schedules
• Program individual timers or create a
schedule for your smart humidifier.
Third-Party Voice Control
• Compatible with Amazon Alexa and
Google Assistant™ for voice commands.
Note: The VeSync app is continually updated and
app features will expand.
USING YOUR SMART HUMIDIFIER (CONT.)

16
Your humidifier must have the correct level
of water in the base chamber to work
properly. If there is too much water in the
base chamber, the humidifier cannot create
mist.
Figure 4.1
IMPORTANT TIPS
• Do not place the humidifier on an
inclined surface.
• Never pour water directly into the
base chamber. [Figure 4.1] Only add
water to the water tank. The humidifier
will automatically release the correct
amount of water into the base chamber.
• Avoid moving or shaking the humidifier.
This may cause the water tank to
release too much water into the base
chamber.
• Before moving the humidifier, turn it o,
unplug it, and remove the water tank.
Empty any excess water from the base
chamber.
Note: If you’ve been using the warm
mist setting, allow the humidifier to cool
before cleaning.
CARE & MAINTENANCE
Note:
• All maintenance should be done on
a water-resistant surface, such as a
kitchen counter.
• Change the water daily to avoid
bacteria growth.
• Use a tissue or cloth to clean the
nozzles regularly.
• If not using the humidifier for 1 week or
longer, do not leave water inside. Clean
and dry the humidifier instead.
Note:
• Never immerse the base in water or
liquid. Do not place any part of the
humidifier in a dishwasher.
• Do not use detergents to clean the
humidifier.
Cleaning
You should clean your humidifier every
week, and when you’re ready to store it.
1. Unplug the humidifier.

17
2. Remove and rinse the water tank cover.
3. Remove the water tank from the base,
and remove the mist channel and mist
tube. [Figure 5.1] Pour out any water from
the tank and base chamber. If you’ve
used the warm mist setting, use caution
in case the water is still hot.
Figure 5.1
Figure 5.2
Figure 5.4
Figure 5.3
Note: When pouring out water, hold
down the float to ensure that it does
not fall out of the base chamber.
4. Remove the water filter from the tank by
rotating it counterclockwise and lifting it
out. [Figure 5.2]
5. Remove the water filter sponge from
the water filter if necessary for cleaning.
[Figure 5.3]
Aroma box
Absorption pad
Noise SilencerFloat
6. Detach the mist tube from the
mist channel by twisting the tube
counterclockwise. [Figure 5.1]
7. Remove the float, noise silencer,
absorption pad, and aroma box from the
base. [Figure 5.4]

18
CARE & MAINTENANCE (CONT.)
8. Detach the outer water outlet valve from
the tank by rotating it counterclockwise.
[Figure 5.4]
9. Rinse all parts (except the outside of the
base) with room temperature water.
10. To descale the humidifier (remove
mineral buildup):
a. Remove the water filter and the
water outlet valve from the tank.
Remove the noise silencer and
absorption pad from the base. Keep
the mist tube and mist channel in
place.
b. Fill the tank with 3 US cups / 710 mL
of distilled white vinegar.
c. Replace the tank cover and swish
the vinegar around the tank.
d. Place the tank on the base and soak
for 15–20 minutes. Vinegar will drain
into the base chamber and loosen
scale (mineral buildup) in the tank
and in the base chamber (including
the transducer and float).
e. Remove the tank, remove the tank
cover, and pour out any vinegar.
f. Remove the float from the base
chamber by pulling up the larger
side of the float and pulling the shaft
out from the float brackets. One
side of the float brackets is open
(U-shaped) to allow the shaft to be
removed. [Figure 5.5]
g. Place the float, water filter, water
outlet valve, aroma box, and noise
silencer in a container. Fill with
enough vinegar to cover them. Soak
for 15–20 minutes.
h. Use a soft cloth and the included
cleaning brush to remove scale from
all parts. [Figure 5.6]
i. Rinse all parts until any vinegar smell
is completely gone.
Figure 5.5
Figure 5.4
Do not allow liquid
into the air outlet
Figure 5.6
11. Dry all parts with a cloth. Make sure
all parts are completely dry before
reassembling or storing.

19
CARE & MAINTENANCE (CONT.)
Figure 5.7
Figure 5.8
Cleaning the Aroma Pad &
Absorption Pad
Note: Do not use liquid cleaners or
detergents to clean the pads or any
other part of the humidifier.
1. Pull out the aroma box and remove the
aroma pad. [Figure 5.7]
2. Remove the noise silencer, then remove
the absorption pad from on top of the
heating element. [Figure 5.8]
3. Rinse the pads under warm, running
water.
4. Dry the pads with a clean cloth.
5. Place the aroma pad back into the
aroma box.
6. Place the absorption pad back into the
base.
Replacing the Aroma Pad &
Absorption Pad
If the aroma pad or absorption pad is sti
even after cleaning, then it needs to be
replaced. Extra pads are included with the
humidifier.
To maintain the performance of your
humidifier, only use ocial Levoit aroma
pads and absorption pads. For more
information, contact Customer Support
(see page 27).

20
CARE & MAINTENANCE (CONT.)
Reassembling
1. Place the float back into the base
chamber: [Figure 5.9]
a. Make sure the correct side of the
float is facing up.
b. Insert the smaller prong into the
closed side of the float brackets.
c. Place the larger prong into the
open (U-shaped) side of the float
brackets.
2. Place the absorption pad and the noise
silencer back over the heating element.
[Figure 5.10]
3. Screw the mist tube back onto the mist
channel by twisting the tube clockwise.
Place securely into place back over the
base chamber. [Figure 5.10]
4. Place the outer water outlet valve back
onto the tank by rotating it. [Figure 5.11]
5. Make sure the water filter sponge is
securely placed inside the water filter.
Place the water filter back into the tank
and rotate it clockwise to secure it in
place. [Figure 5.12]
6. Refill the tank, if necessary. Place the
tank properly on the base and place the
tank cover on the water tank.
Storing
Follow the cleaning instructions (see page
16) and allow all parts to dry completely
before storing. Store in a cool, dry location.
Figure 5.9
Figure 5.10
Figure 5.11
Figure 5.12

21
Problem Possible Solution
Humidifier doesn’t
turn on, or turns o
unexpectedly.
Plug the humidifier into a working outlet and turn it on.
Add purified water to the water tank.
Little or no mist comes
out.
Turn the mist level to a higher setting.
Fill the water tank.
There may be too much water in the base chamber. Empty the base
chamber. Refill the water tank (not the base chamber) and place the water
tank properly onto the base.
Make sure the air inlets on the bottom of the base and in the aroma box
are not blocked. The humidifier should not be set on carpet or other
surfaces that may block the air inlets.
Clean the humidifier (see Care & Maintenance, page 16). Make sure
the nozzles are not blocked or clogged.
Make sure the humidifier is on a level surface.
If the water tank or base was washed with detergent, rinse thoroughly with
clean water to remove any detergent.
Clean the water filter (see page 16) or replace the water filter sponge
with a new one. One replacement water filter sponge is included with this
humidifier. For information on additional replacements, contact Customer
Support (see page 27).
Humidifier uses water too
quickly.
The humidifier uses up water based on the environmental temperature
and humidity. If your environment is cold and/or dry, the humidifier will run
out of water faster.
Using the warm mist function will use up water faster.
Humidifier produces an
unusual smell.
If the humidifier is new, unplug and rinse all parts, then place in a cool, dry
place for 12 hours.
If essential oils were placed on the aroma pad, rinse the pad under clean
water and allow it to dry.
Clean the humidifier (see Care & Maintenance, page 16).
TROUBLESHOOTING

22
TROUBLESHOOTING (CONT.)
Problem
Possible Solution
Humidifier makes a loud
or unusual noise.
Make sure the water tank is properly in place (see Getting Started, page
8).
Set mist level to a lower setting.
Empty the base chamber. Refill the water tank (not the base chamber) and
place the water tank properly onto the base.
When using the warm mist function, the heating element may make a
gurgling noise if the water level is low. Add more water to the water tank.
The humidifier may be malfunctioning. Stop using the humidifier and
contact Customer Support (see page 27).
Mist leaks from the base.
Make sure the water tank is properly in place (see Getting Started, page
8).
White dust appears
around or in the
humidifier.
We recommend using purified to fill the humidifier. Avoid using water with
high mineral content, such as tap water.
Clean the humidifier (see Care & Maintenance, page 16).
Water visibly leaks from
the humidifier.
Avoid running the humidifier in a room with over 60% relative humidity.
Wipe any excess water o the top and bottom of the base.
Do not shake the humidifier.
Make sure to place the humidifier on a flat, level surface.
Check the water tank for leaks. If there are leaks, contact Customer
Support (see page 27).
The area around the
humidifier is damp or wet
from condensation.
Humidity may be too high. Turn down the mist level, turn o the humidifier,
or open a door or window to the room.
Open a window to ensure proper airflow for the humidifier, or move the
humidifier to a more well-ventilated room.
Make sure the water tank is properly in place (see Getting Started, page
8).
When replacing the water tank, wipe o excess water from the water tank
and base.

23
TROUBLESHOOTING (CONT.)
Problem
Possible Solution
Mist is not warm after
pressing .
Allow the humidifier to heat up for about 15 minutes to produce warm mist.
Clean the heating element (see Care & Maintenance,
page 16).
The mist is warm on the
cool mist setting.
The heating element may still be warm after being used for warm mist.
Allow the heating element to cool for at least 30 minutes.
Mold grows inside the
humidifier.
Clean the water tank and base chamber regularly (see Care &
Maintenance, page 16).
lights up red.
Fill the water tank.
Place the water tank properly on the base.
Clean the water filter (see page 16) or replace it with a new one. To
request a new water filter, contact Customer Support (see page 27).
Essential oil has little or
no smell.
Add more essential oil. For best results, use pure essential oil.
Display shows an
incorrect humidity
percentage.
The room may be larger than the humidifier’s eective range. Move to a
room smaller than 430–753 ft² / 40–70 m².
Moisture may have built up inside the humidity sensor. Make sure the
nozzles are facing away from the aroma box so that mist does not settle
on the sensor inside the aroma box (see diagram in Getting To Know Your
Smart Humidifier, page 5). Turn o the humidifier, remove the aroma
box, and allow the sensor to air dry.
If the humidifier is placed within 12 inches / 30 cm of a wall or in a corner,
the humidity sensor cannot provide a proper reading for the relative
humidity in the room.
The humidity sensor will give an improper reading if it is exposed to dust.
Avoid using the humidifier in dusty rooms. Avoid using tap water in the
humidifier, as this can increase dust in the air.
The humidity level isn’t
changing in my room.
Use a higher mist level setting.
Depending on your environment, the humidifier may take longer to
humidify your air.
The room may be larger than the humidifier’s eective range. If the room is
larger than 430–753 ft² / 40–70 m², the humidifier will not be as eective.
Display shows Error Code
“E1”, “E2”, “E3”, “E4”, or
“E6”.
The humidifier is malfunctioning. Contact Customer Support (see page
page 27).

24
VESYNC APP TROUBLESHOOTING
If your problem is not listed, please contact Customer Support (see page 27).
Note: Power outages, internet outages, or changing Wi-Fi routers may cause your humidifier
to go oine.
Why isn’t my humidifier connecting to the VeSync app?
• Make sure your phone has Bluetooth® turned on and is not currently connected to another
Bluetooth device.
• During the setup process, you must be on a secure 2.4GHz Wi-Fi network. Confirm that the
network is working correctly.
• Make sure the Wi-Fi password you entered is correct.
• Make sure your humidifier and phone are within 30 ft / 10 m of each other.
• Reset the humidifier by pressing and holding for 15 seconds. Then try connecting again.
My humidifier is oine.
• Make sure the humidifier is plugged in. The humidifier may appear to be oine if it is
unplugged, or if the outlet does not have power.
• Refresh the VeSync menu by swiping down on the screen.
• Make sure your router is connected to the internet and your phone’s network connection is
working.
• Reset the humidifier using one of these options:
a. Delete the humidifier from the VeSync app. Swipe left (iOS
®
) or press and hold
(Android), then tap Delete. Then reconfigure your humidifier with the VeSync app.
b. Press and hold for 15 seconds. Then reconfigure your humidifier with the VeSync
app.
The VeSync app is displaying an incorrect humidity percentage while the humidifier is
turned on.
• The room may be larger than the humidifier’s eective range. Move to a room smaller than
430–753 ft² / 40–70 m².
• Moisture may have built up inside the humidity sensor. Make sure the nozzles are facing
away from the aroma box so that mist does not settle on the sensor inside the aroma
box (see diagram in Getting To Know Your Smart Humidifier, page 5). Turn o the
humidifier, remove the aroma box, and allow the sensor to air dry.
• If the humidifier is placed within 12 inches / 30 cm of a wall or in a corner, the humidity
sensor cannot provide a proper reading for the relative humidity in the room.
• The humidity sensor will give an improper reading if it is exposed to dust. Avoid using the
humidifier in dusty rooms.

25
FEDERAL COMMUNICATION COMMISSION INTERFERENCE
STATEMENT PART 15
FEDERAL COMMUNICATION COMMISSION INTERFERENCE
STATEMENT PART 18
FCC RADIATION EXPOSURE STATEMENT
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in
a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment o and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit dierent from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could
void the user’s authority to operate this equipment.
This device complies with part 18 of the FCC Rules.
This equipment generates and uses ISM frequency energy and if not installed and used properly, that is in strict
accordance with the manufacturer’s instructions, may cause interference to radio and television reception. It has
been type tested and found to comply with limits for an ISM Equipment pursuant to part 18 of FCC Rules, which are
designed to provide reasonable protection against such interference in a residential installation. However, there is
no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to
radio or television reception, which can be determined by tuning the equipment o and on, the user is encouraged to
try to correct the interference by one or more of the following:
• Reorient the receiving antenna of radio or television.
• Relocate the equipment with respect to the receiver.
• Move the equipment away from the receiver.
• Plug the equipment into a dierent outlet so that the equipment and receiver are on dierent branch circuits.
Conduct only the user maintenance found in this manual. Other maintenance and servicing can cause harmful
interference and can void the required FCC compliance. The manufacturer is not responsible for any radio or TV
interference cause by unauthorized modification to the equipment. It is the responsibility of the user to correct such
interference.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End users
must follow the specific operating instructions for satisfying RF exposure compliance. To maintain compliance with
FCC RF exposure compliance requirements, please follow operation instructions as documented in this manual. This
transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This equipment
should be installed and operated with a minimum distance of 20 cm between the radiator and your body. The
availability of some specific channels and/or operational frequency bands are country dependent and are firmware
programmed at the factory to match the intended destination. The firmware setting is not accessible by the end user.

26
Terms & Policy
Arovast Corporation (“Arovast”) warrants this
product to the original purchaser to be free from
defects in material and workmanship, under
normal use and conditions, for a period of 2 years
from the date of original purchase.
Arovast agrees, at our option during the
warranty period, to repair any defect in material
or workmanship or furnish an equal product in
exchange without charge, subject to verification
of the defect or malfunction and proof of the date
of purchase.
There is no other express warranty. This warranty
does not apply:
• If the product has been modified from its
original condition;
• If the product has not been used in
accordance with directions and instructions
in the user manual;
• To damages or defects caused by accident,
abuse, misuse or improper or inadequate
maintenance;
• To damages or defects caused by service
or repair of the product performed by an
unauthorized service provider or by anyone
other than Arovast;
• To damages or defects occurring during
commercial use, rental use, or any use for
which the product is not intended;
• To damages or defects exceeding the cost
of the product.
Arovast will not be liable for indirect, incidental, or
consequential damages in connection with the use
of the product covered by this warranty.
This warranty extends only to the original
consumer purchaser of the product and is not
transferable to any subsequent owner of the
product regardless of whether the product is
transferred during the specified term of the
warranty.
This warranty does not extend to products
purchased from unauthorized sellers. Arovast’s
warranty extends only to products purchased from
authorized sellers that are subject to Arovast’s
quality controls and have agreed to follow its
quality controls.
All implied warranties are limited to the period of
this limited warranty.
This warranty gives you specific legal rights
and you may also have other rights which
vary from state to state. Some states do not
allow the exclusion or limitation of incidental or
consequential damages, so the above limitation or
exclusion may not apply to you.
If you discover that your product is defective within
the specified warranty period, please contact
Customer Support via [email protected].
DO NOT dispose of your product before
contacting us. Once our Customer Support Team
has approved your request, please return the
product with a copy of the invoice and order ID.
Every Levoit product automatically includes a
2-year warranty. To make the customer support
process quick and easy, register your product
online at www.levoit.com/warranty.
This warranty is made by:
Arovast Corporation
1202 N. Miller St. Suite A
Anaheim, CA 92806
Product Smart Hybrid Ultrasonic
Humidifier
Model LUH-A602S-WUS
For your own reference, we strongly recommend
that you record your order ID and date of
purchase.
Order ID
Date of Purchase
WARRANTY INFORMATION

27
CUSTOMER SUPPORT
If you have any questions or concerns about
your new product, please contact our helpful
Customer Support Team.
Arovast Corporation
1202 N. Miller St., Suite A
Anaheim, CA 92806
Email: [email protected]
Toll-Free: (888) 726-8520
Mon–Fri, 9:00 am–5:00 pm PST/PDT
Support Hours
*Please have your order invoice and order ID
ready before contacting Customer Support.
Apple App Store is a trademark of Apple Inc.
Google, Android, and Google Play are trademarks of Google LLC.
Wi-Fi® is a registered trademark of Wi-Fi Alliance®.
Amazon, Alexa and all related logos are trademarks of Amazon.com, Inc. or its aliates.
iOS is a registered trademark of Cisco Systems, Inc. and/or its aliates in the United States and certain other
countries.
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use
of such marks by Arovast Corporation is under license. Other trademarks and trade names are those of their
respective owners.
ATTRIBUTIONS

JJ081721AL-M1_0621LUH-A602-WUS
/LEVOITLIFESTYLE
/LEVOIT
/LEVOIT
/LEVOITLIFESTYLE
/LEVOITLIFESTYLE
LEVOIT.COM
