Levoit LV400CH User manual

Questions or Concerns?
Please contact us Mon-Fri 9:00AM-5:00PM PST
at [phone] or email [email protected]
Model No.: LV400CH
Ultrasonic Cool Mist Humidifier

Thank you.
Thank you for purchasing the LV400CH Ultrasonic Cool Mist Humidifier by Levoit. We are
dedicated to providing you with quality products so that you can see a better you. Should
you have any questions or concerns about using your new product, feel free to reach out to
our helpful customer support team at [email protected] or by phone at [phone].
We hope you enjoy your new product!

- 3 -
Table of Contents
Safety Information
Main Functions
Set-Up
Operation
Cleaning & Maintenance
Troubleshooting
Warranty Information
Customer Support
4
5
6
7
11
13
15
16
Specifications
Voltage:
Rated Power:
Eective Range:
Water Tank Capacity:
Max Moisture Capacity:
AC 120V/60Hz
25W
10m² (107 ft²)
1.05 gallons (4 L)
200 mL/h
Package Contents
1 x Ultrasonic Cool Mist Humidifier
1 x User Manual
1 x Tourmaline Ceramic Filter (pre-installed)
3 x Aroma Pads

Safety Information
IMPORTANT: Please read, understand, and comply with all of the instructions provided in
this manual before using the device. Failure to comply with the instructions given in this
manual and/or using the device in ways other than the ones mentioned in this manual may
result in serious injury and/or damage the product.
• Ensure that the plug fits properly into a polarized power socket.
• Always disconnect from a power source by pulling the plug when not in use.
• DO NOT use this product in wet environments.
• DO NOT use your hand or any other object to cover the nozzle while the unit is on. Doing
so may damage the product.
• DO NOT clean the unit while it is connected to a power source or while it is on.
• Remove the water tank from the base before moving the humidifier.
• DO NOT place the humidifier near sources of heat, such as stove tops, ovens, radiators or
computers.
• DO NOT place the humidifier near any large pieces of furniture or in any high-trac area
where it can be easily knocked over.
• Unplug the unit when not in use, or while cleaning it out.
• DO NOT use cleaning detergents to clean the humidifier; only use distilled white vinegar.
• DO NOT plug in the unit with wet hands.
• DO NOT place foreign objects into the unit’s base or water tank. Do not use other items
as replacement parts for this product.
• Keep the humidifier out of reach from children.
• Only use this air purifier as described in this manual.
• Contact customer service if the unit is damaged or if it is not functioning properly.
- 4 -

1. Nozzle
2. Water tank
3. Water tank window
4. Tourmaline ceramic filter
5. Water tank cap
6. Night-light
7. Power button
8. Base
9. Inner chamber
10. Transducer
11. Water level sensor
12. Aroma box
13. Aroma pad
14. Charcoal filter
Main Functions
9
1 14
11
10 5
4
8
6
7
12 13
3
2
Top Back
- 5 -

Set-Up
1. Remove the water tank from the base.
2. Flip the tank over and unscrew the water
tank cap.
3. Fill the tank with cold or room
temperature water (use distilled water for
best results). You can gauge how much
water is in the tank by looking through
the water tank window; the maximum
capacity of the water tank is 1.05 gallons
(4 liters).
4. Replace the cap once you have filled the
tank to your desired level.
5. Carefully place the water tank back on
the base, aligning the water tank window
with the power button.
NOTE:
• For best results, fill the water tank with distilled water.
• DO NOT fill the tank with hot water.
• DO NOT add water through the nozzle. - 6 -

Operation
1. Plug the unit in an electrical outlet.
2. Press the power button once to set the
humidifier to the low mist setting. The
power button will light up blue.
3. Press the power button again to set the
unit to the high mist setting. The power
button will light up purple.
NOTE: While the humidifier is operating,
the power button light will automatically
turn o after 30 seconds of inactivity. To
check or change the current mist setting,
simply press the power button again.
4. (Optional) Press and hold the power
button for 2 seconds to turn on or turn
o the built-in night-light.
5. Press the power button once more to
turn o the humidifier.
6. When the water level is low, the power
button will light up red and the unit will
automatically turn o.
7. Unplug the humidifier and refill the
water tank as mentioned in the Set-up
section.
NOTE:
• The nozzle can rotate 360° to diuse
mist in any direction.
• The night-light will remain on if the
humidifier shuts o due to low water
level.
- 7 -

Using the Aroma Box
Your new humidifier can also be used as an
aroma diuser to provide added comfort in
your home.
1. Unplug the humidifier from its power
source.
2. Remove the aroma box from the back of
the base.
3. Add 2-3 drops of essential oil on the
aroma pad.
4. Replace the aroma box. Fill the water
tank with water and place it back on the
base as mentioned in the Set-up section.
5. Plug in and turn on the humidifier.
- 8 -

Preventing Water Leaks
When not sealed properly, the water tank
on your new LV400CH Ultrasonic Cool Mist
Humidifier may leak. The following tips will
ensure that your humidifier will operate
smoothly.
1. Make sure the silicone ring around the
water tank cap is secured at all times.
2. Twist the cap clockwise to secure it onto
the water tank. Make sure the silicone
ring is not deformed.
3. When moving the humidifier, remove
the tank from the base and empty any
excess water inside the inner chamber
before moving the base.
- 9 -

4. Wipe o any excess on water on the
base before replacing the tank.
5. DO NOT shake the humidifier or place
it on an inclined surface. Always make
sure to place the humidifier on a flat,
level surface.
NOTE:
• If the relative humidity in your room exceeds 68%, it is
recommended to use the low mist setting or turn o the device.
• Make sure your room is well-ventilated; this will better help
humidify your room.
- 10 -

Care & Maintenance
Cleaning the Water Tank
Make sure the humidifier is completely
unplugged from any power source while
cleaning.
1. Turn o and unplug the humidifier.
2. Remove the water tank from the base
and pour out any excess water. Fill
the tank with 2 cups of distilled white
vinegar and 2 cups of water; replace the
cap and gently shake the tank to coat all
of the sides.
3. Fill the inner chamber with ½ cup of
distilled vinegar.
4. Allow the vinegar to soak inside both
the water tank and inner chamber for 30
minutes.
5. Use a soft-bristled brush to clean any
scale buildup outside the water tank and
in the inner chamber.
6. Pour out the vinegar from both parts of
the humidifier and thoroughly rinse with
warm water.
7. Dry all parts with a dry, clean cloth.
Make sure all parts of the humidifier are
completely dry before reassembling and
storing in a covered space.
NOTE: The water in the inner chamber
near the transducer may still be warm
after turning o the unit. Use caution when
pouring out the water.
Cleaning the Tourmaline Ceramic Filter
It is recommended to clean the tourmaline
ceramic filter every 6 months, depending
on how often you refill the water tank.
1. Remove the water tank cap from the
humidifier.
2. Detach the tourmaline ceramic filter
from the cap by twisting the cap
counterclockwise.
3. Rinse the filter under clean water, and
allow it to dry in the sun for at least one
hour.
4. Once the filter is dry, replace it back onto
the water tank cap.
- 11 -

- 12 -
NOTE: If you start to find white dust around
your humidifier after operation, it means
that the ceramic filter needs to be washed.
You can also purchase additional filters by
scanning the QR code below.
Removing & Cleaning the Nozzle
1. Remove water tank from the base and
pour out any remaining water.
2. Align the arrow on the nozzle with mark
on the water tank.
3. Slowly flip the water tank over to remove
the nozzle.
4. Scrub the nozzle with a soft-bristled
brush and warm water. Rinse and dry
thoroughly.
5. Replace the nozzle onto the water tank.
Cleaning the Aroma Pad
1. Remove the aroma pad from the aroma
box.
2. Rinse the pad under clean water.
3. Dry with a clean cloth and place it back
into the aroma box.
NOTE:
• It is recommended to change the aroma
pad every 6 months.
• DO NOT pour liquid cleaners or
detergents into the aroma box.
• DO NOT use liquid cleaners or
detergents to wash the aroma pad.

Troubleshooting
Problem Cause Solution
No mist coming out of
nozzle.
Unit is not plugged in. Plug the humidifier into a
powered electrical outlet.
Unit is not turned on. Press the power button to
turn on the unit.
No water in tank. Add at least two cups of
clean water into the water
tank.
Water level low.
Humidifier produces an
unusual smell.
Unit is new. Remove the water cap, and
place the water tank in a
cool, dry place for 12 hours.
Dirty water, or water has
been in tank for a long time.
Rinse and clean water tank
and fill with clean water.
Humidifier makes a loud or
unusual noise.
Tank is positioned
incorrectly.
Align water tank window
with the power button.
Water level low. Add at least two cups of
clean water into the water
tank.
Unit is not level. Place unit on a flat, level
surface.
Unit is malfunctioning. Turn o and unplug the unit;
discontinue use. Contact
customer support.
- 13 -

- 14 -
Problem Cause Solution
Mist is coming out from
base.
Water tank is not positioned
correctly.
Turn o/unplug the unit,
then align water tank
window with the power
button.
White dust appears
around the humidifier after
operation.
Water being used has a high
mineral content.
Use distilled water with the
humidifier.
Tourmaline ceramic filter
can no longer filter water
properly.
Replace ceramic filter.
Power button lights up red. Water level low. Add at least two cups of
clean water into the water
tank.
No water in tank.
Water level sensor
malfunctioning.
Unit may be defective.
Contact customer support.
Power button does not
work.
Unit has malfunctioned. Contact customer support.
Power button flashes blue
briefly, then the unit turns
o.

- 15 -
Warranty
Information
Product LV400CH Ultrasonic
Cool Mist Humidifier
Default Warranty
Period
1 Year(s)
For your own reference, we strongly
recommend that you record your Order
Number and date of purchase.
Order Number:
Date of Purchase:
Levoit warrants all products to be of the
highest quality in material, craftsmanship,
and service. eective starting from the date
of purchase.
Levoit will replace any product found to be
defective due to manufacturer flaws based
on eligibility; refunds are available within
the first 30 days of purchase. This warranty
extends only to personal use and does not
extend to any product that has been used
for commercial, rental, or any other use in
which the product is not intended for. There
are no warranties other than the warranties
expressly set forth with each product.
This warranty is non-transferrable. Levoit
is not responsible in any way for any
damages, losses or inconveniences caused
by equipment failure or by user negligence,
abuse, or use noncompliant with the user
manual or any additional safety, use, or
warnings included in the product packaging
and manual.
This warranty does not apply to the
following:
• Damage due to abuse, accident,
alteration, misuse, tampering or
vandalism.
• Improper or inadequate maintenance.
• Damage in return transit.
• Unsupervised use by children under 18
years of age.
Levoit and its subsidiaries assume no
liability for damage caused by the use of the
product other than for its intended use or as
instructed in the user manual. Some states
do not allow this exclusion or limitation of
incidental or consequential losses so the
foregoing disclaimer may not apply to you.
This warranty gives you specific legal rights
and you may also have other rights which
may vary from state to state.
Terms & Policy

Customer
Support
Should you encounter any issues or have
any questions regarding your new product,
feel free to contact our helpful Customer
Support Team. Your satisfaction is our goal!
Levoit Corporation
1202 N. Miller Street, Suite A
Anaheim, CA 92806
Toll-Free: [phone]
Email: [email protected]
Support Hours
Monday - Friday: 9:00am - 5:00pm PST
*Please have your order number ready
before contacting customer support.
ALL EXPRESSED AND IMPLIED
WARRANTIES, INCLUDING THE
WARRANTY OF MERCHANTABILITY,
ARE LIMITED TO THE PERIOD OF THE
LIMITED WARRANTY.
Additional 1-Year Warranty
You can extend your one-year warranty by
an additional year. Log onto www.levoit.
com/warranty and enter your order number
(i.e. Amazon or Houzz) to register your new
product for the extended warranty.
If you are unable to provide the order
number for your product please type a short
note in the order number field along with
the date you received your product.
Defective Products & Returns
Should your product prove defective within
the specified warranty period, please
contact Customer Support via support@
levoit.com with your order number. Once
our customer service team has approved
your request, please return the unit with a
copy of the invoice or your order number.
- 16 -

www.levoit.com