background image

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

Dual 150 Ultrasonic  

Cool Mist Humidifier

Model

LUH-D302-WUS

For your own reference, we strongly recommend that 

you record your order ID and date of purchase.

Date of Purchase

Order ID

WARRANTY INFORMATION

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.

DL011422RF-M1_LUH-D302-WUS

7

6

8

9

10

Figure 1.11

Note: 

For best results, 

we recommend using 

pure essential oil.

5. 

Optionally, add 10-15 

drops of essential oil 

into the water tank for 

aromatherapy. 

[Figure 1.11]

Filling & Refilling (cont.)

USING YOUR HUMIDIFIER

1. 

Plug in the humidifier. Rotate the Control Knob 

clockwise to turn the humidifier on. Adjust the 

knob to your desired mist level. 

[Figure 2.1]

2. 

Rotate the nozzle to adjust the direction of the 

mist. 

[Figure 2.2]

 

3. 

When your room has reached your preferred 

humidity level, turn the humidifier to a lower 

setting, or turn it off.

4. 

Rotate the Control Knob counterclockwise to 

turn the humidifier off.  

1. 

Remove the water filter from the tank by 

rotating it counterclockwise and lifting it out. 

[Figure 3.5]

2. 

Fill the tank with 3 US cups / 710 mL of distilled 

white vinegar. 

[Figure 3.6]

Figure 2.1

Figure 2.2

Note:

 If there is no water in the tank or the 

tank is removed, the humidifier will stop 

misting and the Refill Indicator light will turn 

on. Refill the tank and properly place it on the 

base to use your humidifier.  

Figure 2.3

Figure 2.4

Figure 2.5

Important Tips

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.

• 

Never

 pour water directly into the base 

chamber. 

[Figure 2.3]

• 

Only 

add water to the water tank. The 

humidifier will automatically release the correct 

amount of water into the base chamber.

Note:

 

The max water line is 

only

 for this purpose. 

Do not pour water into the base chamber.

• 

Avoid moving or shaking the humidifier.  

[Figure 2.4]

 This may cause the water tank to 

release too much water into the base chamber.

• 

Before moving the humidifier, turn it off, 

unplug it, and remove the water tank.

• 

If your humidifier doesn’t produce mist 

correctly, check the max water line to see if 

there is too much water in the base chamber. 

Pour out extra water if water is over the max 

line. 

[Figure 2.5]

Figure 3.2

Figure 3.9

Figure 3.10

Figure 3.1

Figure 3.7

Figure 3.8

Figure 3.3

Figure 3.5

Figure 3.6

Figure 3.4

Figure 3.14

Figure 3.15

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 nozzle regularly.

• 

If not using the humidifier for 3 days or longer, 

do not

 leave water inside. Clean and dry the 

humidifier instead.

Note: When pouring out water, hold 

down the float to ensure that it does 

not fall out of the base chamber.

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

Descaling Your Humidifier

You should clean your humidifier every 3 days, 

and when you’re ready to store it.

4. 

Remove the water filter assembly from the 

tank by rotating it counterclockwise and lifting 

it out. 

[Figure 3.3]

5. 

Rinse the tank, water filter assembly, and 

base chamber with room temperature water. 

[Figure 3.4]

1. 

Unplug the humidifier. 

2. 

Remove and rinse the water tank cover. 

[Figure 3.1]

3. 

Remove the water tank from the base and pour 

out any water from the tank and base chamber. 

[Figure 3.2]

Cleaning (cont.)

Descaling Your Humidifier (cont.)

3. 

Replace the tank cover and swish the vinegar 

around the tank. 

[Figure 3.7]

4. 

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). 

[Figure 3.8]

5. 

Remove the tank, remove the tank cover, and 

pour out any vinegar. 

[Figure 3.9]

6. 

Flip the tank over and remove the noise 

silencer. To remove the noise silencer, press 

the release tabs and gently pull away from the 

humidifier. 

[Figure 3.10]

7. 

Remove the float from the base chamber by 

pulling up one end of the float 

[Figure 3.11]

 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 3.12]

8. 

Place the float, water filter assembly, and noise 

silencer in a small container. Fill with enough 

vinegar to cover them. Soak for 15–20 minutes. 

[Figure 3.13]

Figure 3.11

Figure 3.17

Figure 3.12

Figure 3.18

Figure 3.13

9. 

Use the cleaning brush and a soft cloth to 

remove scale from all parts.

10. 

Rinse all parts until any vinegar smell is 

completely gone. 

[Figure 3.14]

11. 

Dry all parts with a cloth. Make sure all parts are 

completely dry before reassembling or storing. 

Reassembling

1. 

Flip the water tank over and place the noise 

silencer back into the tank. 

[Figure 3.15]

2. 

Place the water filter assembly back into the 

tank and rotate it clockwise to secure it in 

place. 

[Figure 3.16]

3. 

Place the float back into the base chamber:

a. 

Make sure the correct side of the float is 

facing up. 

[Figure 3.17]

b. 

Insert the smaller prong into the closed 

side of the float brackets. 

[Figure 3.18]

c. 

Place the larger prong into the open 

(U-shaped) side of the float brackets.

4. 

Place the tank back on the base. Refill the 

tank, if necessary.

5. 

Place the tank properly on the base and place 

the tank cover on the water tank. 

Storing

Replacing the Filter Assembly

Follow the cleaning instructions (see page 6) and 

allow all parts to dry completely before storing. 

Store in a cool, dry location. 

If the filter assembly is damaged or water 

cannot flow into the base chamber, the filter 

or filter assembly needs to be replaced. For 

more information, contact 

Customer Support

 

(see page 10).

Figure 3.16

Problem

Possible Solution

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 inlet on the bottom of the base is not blocked. The humidifier should not be set on 

carpet or other surfaces that may block the air inlet.
Make sure the nozzle is not blocked or clogged.

Make sure the humidifier is on a level surface.
The water temperature may be too low. Turn the mist level to the highest setting and let the 

humidifier run for a while, then adjust to the desired setting.
If the water tank or base was washed with detergent, rinse thoroughly with clean water to remove 

any detergent.
Clean the water filter assembly (see page 6) or replace it with a new one (see page 10).

Humidifier doesn’t 

turn on, or turns off 

unexpectedly.

Plug in the humidifier and turn it on.

Add purified or distilled water to the water tank.

Problem

Possible Solution

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.

Clean the water tank and base chamber (see 

Care & Maintenance

, page 6).

Humidifier makes 

a loud or unusual 

noise.

Make sure the water tank is properly in place (see 

Getting Started

, page 5).

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.
The humidifier may be malfunctioning. Stop using the humidifier and contact 

Customer Support

 (see 

page 10).

White scale (mineral 

buildup) appears 

around the humidifier.

We recommend using purified or distilled water to fill the humidifier. Avoid using water with high 

mineral content.
Clean the humidifier (see 

Care & Maintenance

, page 6).

Water leaks from the 

humidifier.

Make sure the silicone sealing ring around the water outlet valve is secure.
Avoid running the humidifier in a room with high relative humidity.
Wipe any excess water off 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 10).

Condensation forms 

around humidifier or 

windows.

Humidity may be too high. Turn down the mist level, turn off the humidifier, or open a door or window 

in the room.

Mold grows inside 

the humidifier.

Clean the water tank and base chamber regularly (see 

Care & Maintenance

, page 6).

Refill Indicator Light 

turns on.

Fill the water tank.
Place the water tank properly on the base.
Clean the water filter (see page 6) or replace it with a new one. To request a new water filter, contact 

Customer Support

 (see page 10).

FEDERAL COMMUNICATION COMMISSION INTERFERENCE STATEMENT – PART 18

FCC SDOC SUPPLIER’S DECLARATION OF CONFORMITY  

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 off 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 different outlet so that the equipment and receiver are on different 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. 

Arovast Corporation hereby declares that this equipment is in compliance with the FCC Part 18 Subpart B. The declaration of 

conformity may be consulted in the support section of our Web site, accessible from www.levoit.com 

Summary of Contents for Dual 150 Series

Page 1: ...150 Ultrasonic Cool Mist Humidifier Product Series Dual 150 Model LUH D302 WUS Questions or Concerns Please contact us Mon Fri 9 00 am 5 00 pm PST PDT at support levoit com or at 888 726 8520 USER MA...

Page 2: ...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...

Page 3: ...d persons in order to avoid an electric or fire hazard Please contact Customer Support page 10 SAFETY INFORMATION CONT Do not add supplemental water treatment liquids into the water tank or base chamb...

Page 4: ...Float Brackets S Transducer T Secondary Float U Feet V Air Inlet CONTROLS Control Knob Rotate clockwise to turn on the humidifier and to adjust the mist level Rotate counterclockwise to turn off the h...

Page 5: ...5 Check to make sure that the float is securely in place Figure 1 3 12 in 30 cm 12 in 30 cm Filling Refilling 1 Turn the humidifier off 2 Remove the water tank cover by holding the nozzle and pulling...

Page 6: ...t create mist Never pour water directly into the base chamber Figure 2 3 Only add water to the water tank The humidifier will automatically release the correct amount of water into the base chamber No...

Page 7: ...d base chamber Figure 3 2 Cleaning cont 3 Replace the tank cover and swish the vinegar around the tank Figure 3 7 4 Place the tank on the base and soak for 15 20 minutes Vinegar will drain into the ba...

Page 8: ...pletely before storing Store in a cool dry location If the filter assembly is damaged or water cannot flow into the base chamber the filter or filter assembly needs to be replaced For more information...

Page 9: ...e it with a new one To request a new water filter contact Customer Support see page 10 FEDERAL COMMUNICATION COMMISSION INTERFERENCE STATEMENT PART 18 FCC SDOC SUPPLIER S DECLARATION OF CONFORMITY Thi...

Page 10: ...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 c...

Reviews: