

Hero image 0 of Costway 4L Ultrasonic Humidifier with 2 Mist Levels 12H Timer Sleep Mode for Large Room, 0 of 10
Costway 4L Ultrasonic Humidifier with 2 Mist Levels 12H Timer Sleep Mode for Large Room
Key item features
- Large Capacity & Adjustable Mist Output: Equipped with a 4L/1 gallon water tank, this humidifier for large room can release cool and clean mist for up to 24 hours. And there are 2 adjustable mist levels for you to choose from: 160ml/h (Low), 210ml/h (High). Moreover, the intelligent humidification maintains the desired humidity level you set.
- 360° Nozzle & Essential Oil Diffuser: With a 360°rotatable mist nozzle design, this humidifier can efficiently humidify the whole room. Antibacterial balls in the water tank make the mist clean and BPA-free. What's more, you can add your favorite essential oils to the aromatherapy box to relax your mind while doing yoga, reading books, etc.
- Ultra Quiet Operation & 12H Timer: The 38dB low noise operation and 0-12 hour smart timer allow you to sleep peacefully without disturbance while enjoying soothing humidity. Besides, the frosted LED display will automatically dim in sleep mode and go off after 30s.
- Easy to Operate & Add Water: This humidifier features a touch control panel & LED display for you to easily set power, timer, mist output, humidity (40% -70%)and sleep mode. The top-fill design is convenient for adding water and cleaning. Plus, the visible water level gives you thoughtful instruction to add water.
- Wide Range of Application: This 4Lhumidifier is a perfect humidification solution for your bedroom, living room, nursery, etc. It helps moisturize skin, improve sleep, mist plants and more. What's more, with a compact & portable design, this humidifier can be used anywhere you need.
Specs
- Humidification methodUltrasonic
- Coverage area23 / 250 sq.ft
- Run time24 h
- Volume capacity1 gal
- Dispensing temperatureCool Mist
- FeaturesAutomatic Shut-Off, Oil Diffuser
Current price is USD$41.99$14.00/ea
Price when purchased online
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About this item
Product details
Make your life free from dryness with this humidifier!
Equipped with a 4L large capacity water tank, this humidifier can run up to 24 hours and keep moisturizing & refreshing your home. You can add a few drops of essential oils to relieve fatigue and keep you relaxed. Moreover, the humidifier will send an alarm and stop working when it runs out of water, ensuring your safety and avoiding damage. Designed with 2 mist output levels, 0-12 hour timer and adjustable humidity range between 40-70%, this humidifier can meet your customized needs. Plus, the water tank comes with antibacterial balls, making it safe for your kids, family and pets. The quiet sleep mode and display screen auto off function let you enjoy a good sleep all night. Plus, this top-fill humidifier is easy to add water and clean.
Feature
4L large water tank allows for 24 hours of continuous use
ETL certification &water shortage protection for high safety
2 mist levels (high/low) to meet your different needs
Top fill design for effortless adding water and cleanup
Essential oil diffuser to create a soothing environment
0-12h timer brings convenience and saves energy
BPA-free and clean mist is safe for babies and pets
Low noise operation won't disturb your sleep
LED touch control panel for easy operation
Ideal for bedroom, living room, office and more
Specification
Color: White
Material: ABS
Product Dimension: 7'' x 7''x 12.5'' (L x W x H)
Net Weight: 3 lbs
Rated Power: 22W
Voltage: 120V
Rated Frequency: 50/60Hz
Rated Humidification: 280ml/h
Water Tank Capacity: 1 Gallon
Adjustable Humidity Range: 40% - 70%
Length of Power Cord: 5.9 ft
Coverage: 250 sq.ft
Runtime: 24H (low mist level)/18H (high mist level)
Timer: 0-12 Hours
Noise Level: ≤38 dB
Package Includes:
1 x Humidifier
1 x Adapter
1 x Instruction
Equipped with a 4L large capacity water tank, this humidifier can run up to 24 hours and keep moisturizing & refreshing your home. You can add a few drops of essential oils to relieve fatigue and keep you relaxed. Moreover, the humidifier will send an alarm and stop working when it runs out of water, ensuring your safety and avoiding damage. Designed with 2 mist output levels, 0-12 hour timer and adjustable humidity range between 40-70%, this humidifier can meet your customized needs. Plus, the water tank comes with antibacterial balls, making it safe for your kids, family and pets. The quiet sleep mode and display screen auto off function let you enjoy a good sleep all night. Plus, this top-fill humidifier is easy to add water and clean.
Feature
4L large water tank allows for 24 hours of continuous use
ETL certification &water shortage protection for high safety
2 mist levels (high/low) to meet your different needs
Top fill design for effortless adding water and cleanup
Essential oil diffuser to create a soothing environment
0-12h timer brings convenience and saves energy
BPA-free and clean mist is safe for babies and pets
Low noise operation won't disturb your sleep
LED touch control panel for easy operation
Ideal for bedroom, living room, office and more
Specification
Color: White
Material: ABS
Product Dimension: 7'' x 7''x 12.5'' (L x W x H)
Net Weight: 3 lbs
Rated Power: 22W
Voltage: 120V
Rated Frequency: 50/60Hz
Rated Humidification: 280ml/h
Water Tank Capacity: 1 Gallon
Adjustable Humidity Range: 40% - 70%
Length of Power Cord: 5.9 ft
Coverage: 250 sq.ft
Runtime: 24H (low mist level)/18H (high mist level)
Timer: 0-12 Hours
Noise Level: ≤38 dB
Package Includes:
1 x Humidifier
1 x Adapter
1 x Instruction
- Large Capacity & Adjustable Mist Output: Equipped with a 4L/1 gallon water tank, this humidifier for large room can release cool and clean mist for up to 24 hours. And there are 2 adjustable mist levels for you to choose from: 160ml/h (Low), 210ml/h (High). Moreover, the intelligent humidification maintains the desired humidity level you set.
- 360° Nozzle & Essential Oil Diffuser: With a 360°rotatable mist nozzle design, this humidifier can efficiently humidify the whole room. Antibacterial balls in the water tank make the mist clean and BPA-free. What's more, you can add your favorite essential oils to the aromatherapy box to relax your mind while doing yoga, reading books, etc.
- Ultra Quiet Operation & 12H Timer: The 38dB low noise operation and 0-12 hour smart timer allow you to sleep peacefully without disturbance while enjoying soothing humidity. Besides, the frosted LED display will automatically dim in sleep mode and go off after 30s.
- Easy to Operate & Add Water: This humidifier features a touch control panel & LED display for you to easily set power, timer, mist output, humidity (40% -70%)and sleep mode. The top-fill design is convenient for adding water and cleaning. Plus, the visible water level gives you thoughtful instruction to add water.
- Wide Range of Application: This 4Lhumidifier is a perfect humidification solution for your bedroom, living room, nursery, etc. It helps moisturize skin, improve sleep, mist plants and more. What's more, with a compact & portable design, this humidifier can be used anywhere you need.
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Humidification method
Ultrasonic
Coverage area
23 / 250 sq.ft
Run time
24 h
Volume capacity
1 gal
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
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Customer ratings & reviews
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Showing 1-3 of 3 reviews
Mar 18, 2025
Sam shops
5 out of 5 stars review
Seller Verified Purchase
The next best humidifier
Love it. It's not noisy and it can hold a lot of distilled water.
International review
Review from walmart.ca
Helpful?6C71FQQIK6LK2787338777
Dec 17, 2025
Harold
1 out of 5 stars review
Seller Verified Purchase
garbage bought two inlast year bought lasted five
bought twice in last year and don't work
International review
Review from walmart.ca
Helpful?6C71FQQIK6LK2787338777
Jun 24, 2025
Walmart customer
1 out of 5 stars review
Seller Verified Purchase
Not good
It stopped working just another day
International review
Review from walmart.ca
Helpful?6C71FQQIK6LK2787338777


