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LEVOIT Humidifiers for Bedroom Home, Smart Warm and Cool Mist Air Humidifier for Large Room, Auto Customized Humidity, Fast Symptom Relief, Easy Top Fill, Essential Oil, Quiet, OasisMist4.5L, White

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Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon

Arrives Wednesday, Jul 16
Order within 10 hours and 40 minutes
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Style: Smart Warm&Cool Mist


Size: 4.5L


Features

  • Rapid Moisture, Instant Relief: Dealing with sinuses, congestions, and restless sleep. Our humidifier with warm and cool mist, combined with a double duct design, offers quicker and more even humidification. Get instant relief and embrace life's comforts
  • Healthier and Warm Hydration: Enjoy your ideal humidifier choice. Its warm and cool mist features not only ensure a healthier humidifying process by reducing white dust from water but also offer safety with the warm mist temperature set between 40C and 60C
  • Personalize Your Comfort with Auto Mode: Tailor your preferred humidity effortlessly using the Vesync app or simply activate Auto Mode on the display to maintain humidity levels between 40 percent and 60 percent RH. Set it up and relish in the soothing ambiance today
  • Effortless Smart Control: Manage humidifiers for your bedroom and home remotely at anytime and anywhere. Plus, create schedules that sync with your daily routine, enabling the humidifier to seamlessly turn on and off according to your lifestyle
  • Much Easier for Refilling and Cleaning: Our top-fill design simplifies the process, with just one step to fill the 4.5L tank. No more spills or struggles. Cleaning is a breeze too, as the wide opening ensures easy access for a healthier environment
  • Fragrance Tailored for You: Feeling tired after a long day. Add 2-3 drops of your favorite essential oil to the tray and indulge in a unique, fragrant, and soothing home atmosphere
  • Convenient Designs: Enjoy dual mist nozzles for easy mist direction adjustment and a user-friendly handle design for quick water tank maintenance, enhancing your experience
  • Near-Silent Operation: Upgraded triple noise reduction technology helps operate at minimum levels for warm mist, making it a great bedroom humidifier. Turn off display lights and enjoy this peaceful bedtime
  • Tip: For the well-being of you and your family, as well as prolong the life of your humidifier, it's advisable to clean and throughly dry the humidifier after use. Refer to the user manual for detailed instructions on cleaning and storage of humidifier

Description

Smart Control: Control settings, create schedules, and view real-time humidity levels through the free VeSync app. Seamlessly manage your humidifier from anywhere.Warm & Cool Mist: Choose between warm or cool mist settings to suit your environment, providing comfort year-round.Auto Mode: Set your preferred humidity level in the VeSync app and let Auto Mode maintain it for you.Aromatherapy: Add essential oils to the aroma pad to create a soothing, fragrant atmosphere in your space.Ultra-Quiet: Noise reduction technology keeps the sound level as low as 26dB—whisper-quiet operation for peaceful sleep or work.Dual 360° Nozzles: Customize mist output with two rotating nozzles, directing mist in different directions for complete room coverage.Top-Fill Design: Refill the tank easily by pouring water directly into the top—no need to flip anything over!Wide Coverage: Quickly humidify rooms sized between 215–430 ft² with efficient mist output for optimal comfort.Health Benefits: Maintains optimal humidity to help hydrate skin, relieve congestion, and reduce nightly coughing.What’s Included: 1 × Smart Humidifier 1 × Cleaning Brush 3 × Aroma Pads (1 pre-installed) 3 × Absorption Pads (1 pre-installed) 2 × Water Filter Sponges (1 pre-installed) 1 × User Manual 1 × Quick Start GuidePerfect for Your Space: Turn your room into a tropical haven, meditation space, or home spa with soothing mist and aromatherapy.Smart Control Features: Control settings, monitor humidity levels, set schedules and timers, and adjust mist output easily through the app.Why Choose This Humidifier: Enhance your comfort with versatile features, ultra-quiet operation, and customizable mist settings to suit your needs.Note: Please remember to use genuine LEVOIT accessories to ensure optimal performance and avoid potential issues with non-official parts.

Brand: LEVOIT


Special Feature: Warm and Cool Mist for Faster and Healthier Relief, Timer, Remote Control, Schedule, Smart Vesync APP, Aroma Diffuser, Humidistat See more


Color: White


Filter Type: Water Filter Sponge


Floor Area: 430 Square Feet


Brand: LEVOIT


Special Feature: Warm and Cool Mist for Faster and Healthier Relief, Timer, Remote Control, Schedule, Smart Vesync APP, Aroma Diffuser, Humidistat


Color: White


Filter Type: Water Filter Sponge


Floor Area: 430 Square Feet


Operation Mode: Ultrasonic


Product Dimensions: 10.8"D x 6"W x 11.97"H


Item Weight: 5.3 Pounds


Room Type: Baby,Bedroom,Bedrooms


Model Name: OasisMist Smart Cool and Warm Mist Humidifiers for Bedroom Large Room Home,


Included Components: User Manual, Aroma Pad, Cleaning Brush, 1 × 4.5-Liter Smart Warm & Cool Mist Humidifier, 1 × Quick Start Guide, Water Filter Sponge


Voltage: 120 Volts


Wattage: 12 watts


Control Method: App


Shape: Rectangular


UPC: 810043375542


Global Trade Identification Number: 42


Manufacturer: LEVOIT


Item Weight: 5.3 pounds


Country of Origin: China


Item model number: LUH-O451S-WUS


Date First Available: August 9, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jul 16

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Excellent humidifier
Style: Smart Warm&Cool Mist Size: 4.5L
This works great. Does a great job humidifying a large size room. Stonger than expected. Very easy to fill with water. Very easy to clean. Extremely quiet. The app function is easy to use and a great addition. Warm and cold mist function are a great option.
Reviewed in the United States on June 14, 2025 by Reds07

  • Amazing.
Style: Smart Warm&Cool Mist Size: 4.5L
I love my Levoit humidifier. It’s perfect in every way; so much so that I ordered a second one. I now have one in my bedroom and one in my livingroom. The humidifiers have eliminated static electricity in my home, reduced nose bleeds due to dry air, and in some amazing magic it produces as helped my dry skin and hair. In addition, I used the warm mist option when I felt a sinus infection starting and it really helped me ward off illness. I truly can’t recommend this product enough. They’re attractive, well built, as advertised, easy to use, easy to clean, automatically turn off if the water gets too low, and the app is flawless. My ONLY complaint (if I had to knit pick) is that I don’t feel the essential oils compartment actually does anything as I put eucalyptus essential oil in it (a full dropper too) and never smell the eucalyptus. All in all this was a really good buy and I would not hesitate recommending it or replacing one if I ever needed too. ... show more
Reviewed in the United States on February 10, 2025 by Ash

  • Great humidifier
Style: Smart Warm&Cool Mist Size: 4.5L
Excellent little humidifer. I don't use the app, so maybe that's not very good, but i don't have to use the app as it works great by itself. The tub on top is easy to remove, carry, fill, and reinsert without spilling a drop of water. The buttons are all easy and useful and the humidity indicator is very intuitive. The ONLY problem i could possibly have with this product is that the 'auto' feature, if you turn the humidifier off with it enabled, will spew mist for about a minute when turning it back on, even if humidity is higher than the max. The indicator said 80% and it still spewed mist after turning it on. It's also virtually silent, if it makes any noise it blends into the background and is perfect white noise to sleep. I am almost angry this company doesn't make dehumidifiers cause i'm sure they would be just as good. ... show more
Reviewed in the United States on July 11, 2025 by Buckshot2825

  • A good unit... except for the hygrometer
Style: Smart Cool&Warm Mist Size: 6L
PROS: * Nice large size. I poured in a whole gallon of distilled water and there was still room left in the reservoir. * The water reservoir comes out completely for cleaning and has a handle for easy carrying. * The controls are simple, including both cool and warm mist options, a timer, a sleep function, and several options for rate. * The smart app is convenient if you want to control multiple units in various parts of the house, and there is a scheduling feature. * There are two adjustable nozzles. * Nice, quiet operation. CONS: * I chose this model pver some others for its built-in hygrometer, but it’s highly inaccurate. I tested it against three other hygrometers, moving them every 15 minutes for an hour. All three read 35–36%, while this unit showed 59%. Even without these visual comparisons, the air didn’t feel even close to as humid as the reading suggested. * Since I have other hygrometers, the built-in one doesn't need to be precise. However, without it, the app is useful only as a remote control. The app tracks humidity over time, but its reports are meaningless without accurate readings from the machine. * There is a little side door with a pad for essential oils, but I'm not sure much, if any, of the EOs get into the mist. I couldn't smell them at all. ... show more
Reviewed in the United States on March 7, 2025 by WackyMom

  • Finally
Style: Smart Warm&Cool Mist Size: 4.5L
I struggled with sinus issues all of my life. At night I haven't been able to sleep due to congestion. I purchased this humidifier and have been breathing nightly with no problem. It's easy to clean, small, and powerful. I love that it's so quiet. I definitely recommend.
Reviewed in the United States on June 25, 2025 by Amazon Customer

  • Best Humidifier
Style: Smart Warm&Cool Mist Size: 4.5L
Best humidifier I have found. Tried others but this one is the best. Easy to fill and operate. It has different settings. Cool or warm steam. The steam comes out in two heavy streams but can be adjusted to a lighter stream. Works good and fast to put some humidity in a larger room to help stuffy noses or congestion. I highly recommend. ... show more
Reviewed in the United States on June 5, 2025 by Kristen M.

  • EXCELLENT!!!!! I will never never purchase any other Humidifier than this one.
Style: Smart Warm&Cool Mist Size: 4.5L
I ABSOLUTELY and without a doubt love this "Smart" Humidifier. It was not easy to put together the first time and you might have to go online and find a video or pdf user manual to help. Otherwise, well worth the money. Levoit is the way to go. QUIET. When it feels dry in my room I say, "Alexa, turn on humidifier". It measures the amount of humidity in your room and will automatically shut off when it reaches a certain level of moisture in the air. I love love love that it has a Sleep Mode. I suggest using distilled water in the tank. No need to fill up the tank; half way will do. ... show more
Reviewed in the United States on May 6, 2025 by Kindle Customer

  • Works well but a few issues
Style: Smart Cool&Warm Mist Size: 6L
The good: Works well with distilled water and I’ve had no issues with cleaning or vapor output with distilled water which is to be expected. I have forced hot air while house heat with an Aprilaire while house humidifier so this humidifier only requires spot duty when our 2 year old grand daughter has a sleep over. Distilled water is $1.29/gallon in my area and that lasts about 2 nights when running for 8 hours at 40% humidity target. The app works great, the machine screen is bright, no overt leaks, 6L water capacity is good. Comes apart for cleaning. The not so good: NO way this will unit will run 60 hours on anything but eco with a 20% humidity level tops. I get 2 1/2 to 3 nights of 8 hour run time from 6L of distiller water at 40% humidity level. That would get pricey running the machine every night. Regular water when vaporized gives off white mineral dust from humidifiers and regular cleaning is required. The machine NEEDS a handle and the water tank needs a handle. The lack of an external case and tank handle is a big miss. Distilled water is expensive, regular water is a lot of maintenance. The choice is yours - good luck ... show more
Reviewed in the United States on February 20, 2025 by Rolidnot

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