

💨 Elevate your air game — breathe smarter, live better!
The LEVOIT OasisMist 4.5L Smart Humidifier combines warm and cool mist technology with smart app control to maintain optimal humidity in large rooms up to 430 sq ft. Featuring a whisper-quiet ultrasonic operation, dual 360° nozzles, and a convenient top-fill design, it offers fast symptom relief, personalized comfort, and effortless maintenance. Integrated aromatherapy and scheduling capabilities make it a must-have for health-conscious professionals seeking a serene, breathable environment.












| ASIN | B0B1DQ8KV3 |
| Assembly required | No |
| Batteries required | No |
| Best Sellers Rank | #625 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #12 in Humidifiers |
| Brand | LEVOIT |
| Care instructions | Hand Wash |
| Color | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (5,007) |
| Floor Area | 430 Square Feet |
| Global Trade Identification Number | 00810043375542 |
| Included Components | 1 × 4.5-Liter Smart Warm & Cool Mist Humidifier, Aroma Pad, Cleaning Brush, Water Filter Sponge |
| Item Weight | 5.3 pounds |
| Item model number | LUH-O451S-WUS |
| Manufacturer | LEVOIT |
| Model Name | OasisMist Smart Cool and Warm Mist Humidifiers for Bedroom Large Room Home, |
| Number of pieces | 1 |
| Operation Mode | Ultrasonic |
| Product Dimensions | 10.8"D x 6"W x 11.97"H |
| Room Type | Baby,Bedroom,Bedrooms |
| Shape | Rectangular |
| Special Feature | Aroma Diffuser, Humidistat, Schedule, Smart Vesync APP, Warm and Cool Mist for Faster and Healthier Relief |
| UPC | 810043375542 |
| Voltage | 120 Volts |
| Wattage | 12 watts |
C**T
Great Humidifier
Humidifier works great and keeps the bedroom at a steady humidity. With a humidifier like this, use RO or distilled water, tap water will cause a white dust to disperse over time. Super quiet and can’t hear it operating in auto mode. The app is super easy to use and I would utilize that more than the actual controls on the humidifier. The humidifier relative humidity sensor is fairly accurate, but I’d highly recommend getting a second hydrometer and putting it somewhere else in the room, not next to the humidifier to test the real humidity. Few negatives but it doesn’t change the 5 star rating. The sleep mode function is basically useless as it mists at the lowest level humidity setting with no programming to stop at certain level so the humidity climbs to way too high levels. There is no screen display off button at the unit and you have to use the app to turn off the display if the display is providing too much light in the room at night. These are minor control nuances that they could do better in a future model.
T**Y
Warm and cool mist options are great
Very happy with this humidifier. The warm and cool mist options are a great feature and make it easy to adjust depending on the season. It performs consistently and keeps humidity levels right where they should be. I also like that you can add essential oils and scents — it’s a nice bonus and works exactly as expected without any hassle. Controls are intuitive, and everything just works. Well-designed, reliable, and versatile. Solid product from Levoit.
T**T
Quality Humidifier for Your Home
LEVOIT is a good brand. I have their air purifier that I use to clean the air. So I ventured out and I bought their humidifier. I like that it has a large opening at the top to fill the machine. It is SUPER quiet. The design is nice to look at and I like the fact that I can see the exact amount of humidity in the room. You have the ability to increase the mist and you can make the mist come out warm. Because my air purifier is working years after I bought it, I expect this unit to perform no differently. The water tank is clear so you can see exactly how much water you have in the unit. I cleaned the unit upon arrival. It had zero smell. The water tank is portable. It has a handle that allows you to pull the tank off the unit and fill it. I use purified water for this, versus sink water. It runs better on cleaner water. It
W**M
A good unit... except for the hygrometer
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.
R**U
Hot and Cool Mist! Quiet and Smart - Works Seamlessly with Essential Oils.
It's a compact humidifier that produces an impressive amount of mist for its size. It operates very quietly, and the essential oil filter is easy to clean with just plain water, leaving no lingering scent behind. I have to admit, I wasn’t expecting the filters to be so easy to clean. It provides both hot and cool mist that works easily through the VeSync app or directly from the front panel. Highly recommended!
M**R
A great humidifier!
This is a great humidifier! The cleaning is very easy, which I know is a great concern for many people including myself. You can also order filters (which in my experience rarely need replacing more than every several cleanings or so) right from the app that controls it! Used Apple Pay and everything and it has me set for probably a year only $25. I know this is also a big concern for people- cost of filters and upkeep. Otherwise, the app control is great- love the option to make it either cool or warm. I would only note I wish I could customize what night mode settings are so I could actually turn off the display at night/ an improvement of this feature would be great. However, the light pollution isn’t noticeable when my eyes are closed even when I keep it right next to my bed- so, so far I have not replaced it. It’s also very quiet, I only have to fill the tank every 2 days, and fits almost anywhere. Overall, 4.6/5, rounded up for my review.
M**M
Works awesome
This humidifier is AWESOME! Works like a charm! If you have any issues with breathing this machine is great! Gallon of water can last all day or night with the simple control features! You can control time, water usage and steam output! Can have shut off automatically by timer! There is also a phone app if you want to control remote! This unit can disperse Hot or Cold steam per controls! This humidifier can do a very large area in a decent amount of time and smaller areas faster!
C**A
This humidifier is so quiet! It is in a large room, but it’s really just for me and it’s still keeping it at about 50% humidity. I have it set on the highest setting and the tank has lasted 24 hours. Super easy to fill, either by removing the tank and filling elsewhere or filling from the top. Very happy about this purchase!
P**E
I started using the OasisMist 600S and I’ve noticed quite the difference in the air quality of my home. It covers a large area easily, and the various modes do a great job at maintaining the perfect humidity level. The unit is quiet and the top-fill design makes refilling a breeze. I was also happy to find that maintenance is straightforward; I’ve cleaned it once so far and the process was quick and easy. Great product from Levoit, highly recommended!
E**O
Excelente, relación calidad y precio. Sin ruido excepto nivel de vapor caliente sin embargo es mínimo el ruido. Suficiente 2L para 8 horas. Agregue un caballito de vodka para mejorar las vías respiratorias. Recomendable 100%.
S**O
Maravilloso. Todo funciona como debe. Muy Intuitivo y con la app es fantástico el control. 10/10
D**S
Really impressed with how quiet it is and how well it works. Warm mist is great for humidifying the room faster and cool mist keeps it going longer. Either way, so good. And ease of use and cleaning is great too. The app is simple and works well. Completely happy with this purchase.
TrustPilot
vor 2 Wochen
vor 3 Wochen