To reduce the risk of fire, electric shock, or other injury, follow all instructions and safety guidelines.
General Safety
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-traffic areas.
When not in use, turn the humidifier off and disconnect from power by removing the plug from the outlet.
Donot use the humidifier in wet environments.
Keep the humidifier out of reach from children.
Donot 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.
Donot place the humidifier near sources of heat, such as stovetops, ovens, or radiators.
Donot place the humidifier directly on floors, carpets, or rugs.
Donot use other items as replacement parts for this product.
Donot cover the nozzle while the humidifier is on. Doing so may damage the humidifier.
Remove the water tank from the base before moving the humidifier.
Donot immerse the humidifier base, power cord, or plug in water. If the humidifier is damaged or is not functioning properly, stop using it and contact Customer Support immediately.
This humidifier can be used by children 8 years and older as well as 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 humidifier in a safe way and understand the hazards involved.
Supervise children when they are near the humidifier.
Children should not clean or perform maintenance on the humidifier without supervision.
Children should be supervised to ensure that they do not play with the humidifier.
Household use only. Not for commercial use.
Risk of Leaks and Electric Shock
Do not add supplemental water treatment liquids into the water tank or base chamber. This will damage the humidifier and cause leaks.
Power & Cord
Do not handle the power cord or plug with wet hands. Keep the plug and power cord away from liquids.
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.
Electromagnetic Fields (EMF)
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.
This symbol means the product must not be discarded as household waste, and should be delivered to an appropriate collection facility for recycling. Proper disposal and recycling helps protect natural resources, human health and the environment.
For more information on disposal and recycling of this product, contact your local municipality, disposal service, or the shop where you bought this product.
This product is RoHS compliant. This product is in compliance with Directive 2011/65/EU, and its amendments, on the restriction of the use of certain hazardous substances in electrical and electronic equipment.
Maintenance Safety
Be aware that high humidity levels may encourage the growth of biological organisms in the environment.
Do not permit the area around the humidifier to become damp or wet. If dampness occurs, turn the output of the humidifier down. If the humidifier output volume cannot be turned down, use the humidifier intermittently. Do not allow absorbent materials, such as carpeting, curtains, drapes, or tablecloths, to become damp.
Unplug the humidifier during filling and cleaning.
Never leave water in the reservoir when the humidifier is not in use.
Empty and clean the humidifier before storage. Clean the humidifier before next use.
Micro-organisms that may be present in the water or in the environment where the humidifier is used or stored, can grow in the water reservoir and be blown in the air causing very serious health risks when the water is not renewed and when the tank is not cleaned properly every 3 days.
Empty the tank and refill every third day. Before refilling, clean it with fresh tap water or cleaning agents (see Cleaning). Remove any scale, deposits, or film that has formed on the sides of the tank or on interior surfaces, and wipe all surfaces dry. See Cleaning for in-depth instructions.
CLEAN THE WATER TANK AND BASE CHAMBER EVERY 3 DAYS OR LESS
WARRANTY INFORMATION
Product
Dual 150 Ultrasonic Cool Mist Humidifier
Model
LUH-D302-WUK,LUH-D302-BUK
For your own reference, we strongly recommend that you record your order ID and date of purchase.
Date of Purchase
Order ID
Terms & Policy Arovast Corporation ("Arovast") warrants all products to be of the highest quality in material, craftmanship, and service, effective from the date of purchase to the end of the 2-year warranty period.
This warranty does not limit your rights under the applicable local consumer protection laws. If the applicable local consumer protection laws requires the manufacturer to provide a longer warranty period, the warranty period shall be extended to the shortest period required by the laws.
If you have any questions or concerns about your new product, please contact our helpful Customer Support Team.
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 USA Email: support.uk@levoit.com *Please have your order invoice and order ID ready before contacting Customer Support.
Package Contents
1 × Ultrasonic Cool Mist Humidifier
2 × Water Filter Sponge (1 Pre-Installed)
1 × Cleaning Brush 1 × User Manual
Specifications
Power Supply
AC 220–240V, 50/60Hz
Rated Power
25W
Water Tank Capacity
3 L / 0.66 gal
Max Runtime
Up to 25 hours on minimum mist setting Note:The humidifier may run for a longer or shorter time depending on the environmental temperature and humidity.
Noise Level
Effective Range
10–27 m² / 107–290 ft²
Dimensions
18.3 × 20.6 × 29.4 cm / 7.2 × 8.1 × 11.6 in
Weight
1.38 kg / 3 lb
Our helpful Customer Support Team will reply to your email within 24 hours after receiving it on a business day.
GETTING TO KNOW YOUR HUMIDIFIER
Nozzle
Water Tank Cover
Water Filter Housing
Water Filter
Mist Tube
Water Tank
Float
Refill Indicator Light
Control Knob
Base
Cleaning Brush
Power Cord
Max Water Line (Tank)
Water Outlet Valve
Noise Silencer
Air Outlet
Max Water Line (Base)
Float Brackets
Transducer
Secondary Float
Feet
Air Inlet
Night Light Button
Night Light
CONTROLS
Control Knob
Rotate clockwise to turn on the humidifier and to adjust the mist level.
Rotate anticlockwise to turn off the humidifier.
Note:There is a clicking sound when the humidifier turns on/off.
Refill Indicator Light
The red light turns on when the water tank is empty. Refill the water tank.
The red light turns off when the water tank is filled.
Night Light Button
Press to turn the night light on.
Press again to turn the night light off.
GETTING STARTED
Remove all packaging.
Take the water tank off of the base and remove all tape. [Figure 1.1]
Rinse and reassemble all parts before first use (see Cleaning).
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.[Figure 1.2]
Check to make sure that the float issecurely in place. [Figure 1.3]
Choose a hard, flat location for the humidifier at least 30 cm / 12 inches away from any walls. The surface must be water-resistant. [Figure 1.4]
Mist should be directed away from walls, furniture, bedding, and appliances.[Figure 1.5]
Filling & Refilling
Note:Make sure the water tank is clean before filling.
Turn the humidifier off.
Remove the water tank cover by holding the nozzle and pulling upward. [Figure 1.6]
Fill the tank with room-temperature water. [Figure 1.7]
Note:
We recommend using purified or distilled water to fill the tank.
Do notfill past the tank's max water line.
Do notfill with hot water.
Do not add water directly into the base chamber.[Figure 1.8]
Do not add water through the mist tube.[Figure 1.9]
Replace the water tank cover. Note:Make sure the nozzle on the water tank cover is placed over the mist tube, or the humidifier may not work correctly. [Figure 1.10]
Optionally, add 10–15 drops of essential oil into the water tank for aromatherapy. [Figure 1.11]
Note:For best results, we recommend using pure essential oil.
USING YOUR HUMIDIFIER
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]
Rotate the nozzle to adjust the direction of the mist.[Figure 2.2]
When your room has reached your preferred humidity level, turn the humidifier to a lower setting, or turn it off.
Rotate the Control Knob anticlockwise to turn the humidifier off.
Press the Night Light Button to turn the night light on/off. 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.
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.
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]
Note:The max water line isonlyfor this purpose.
Do not pour water into the base chamber.
CARE & MAINTENANCE
Note:
All maintenance should be done on a waterresistant 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.
Cleaning
You should clean your humidifier water tank and base chamber every 3 days, and when you're ready to store it.
Note:
Neverimmerse 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.
Unplug the humidifier.
Remove and rinse the water tank cover. [Figure 3.1]
Remove the water tank from the base and pour out any water from the tank and base chamber. [Figure 3.2]
Note: When pouring out water, hold down the float to ensure that it does not fall out of the base chamber.
Remove the water filter assembly from the tank by rotating it anticlockwise and lifting it out. [Figure 3.3]
Rinse the tank, water filter assembly, and base chamber with room temperature water. [Figure 3.4]
Descaling Your Humidifier
Remove the water filter from the tank by rotating it anticlockwise and lifting it out. [Figure 3.5]
Fill the tank with 710 mL / 3 US cups of distilled white vinegar. [Figure 3.6]
Replace the tank cover and swish the vinegar around the tank.[Figure 3.7]
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]
Remove the tank, remove the tank cover, and pour out any vinegar.[Figure 3.9]
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]
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]
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]
Use the cleaning brush and a soft cloth to remove scale from all parts.
Rinse all parts until any vinegar smell is completely gone. [Figure 3.14]
Dry all parts with a cloth. Make sure all parts are completely dry before reassembling or storing.
Reassembling
Flip the water tank over and place the noise silencer back into the tank. [Figure 3.15]
Place the water filter assembly back into the tank and rotate it clockwise to secure it in place.[Figure 3.16]
Place the float back into the base chamber:
Make sure the correct side of the float is facing up.[Figure 3.17]
Insert the smaller prong into the closed side of the float brackets. [Figure 3.18]
Place the larger prong into the open (U-shaped) side of the float brackets.
Place the tank back on the base. 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 and allow all parts to dry completely before storing. Store in a cool, dry location.
Replacing the Filter Assembly
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.
TROUBLESHOOTING
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 or replace it with a new one.
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.
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).
Humidifier makes a loud or unusual noise.
Make sure the water tank is properly in place (see Getting Started).
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.
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).
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.
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.
Mould grows inside the humidifier.
Clean the water tank and base chamber regularly (see Care & Maintenance).
Refill Indicator Light turns on.
Fill the water tank.
Place the water tank properly on the base.
Clean the water filter or replace it with a new one. To request a new water filter, contact Customer Support.
If your problem is not listed, please contact Customer Support.
Need help?
Do you have a question about the Dual 150 Series and is the answer not in the manual?
Questions and answers