






💨 Transform your space from desert dry to oasis fresh—smart, silent, and sleek!
The LEVOIT Smart Warm&Cool Humidifier features a 4.5L tank with rapid 550 ml/h mist output covering up to 40㎡. Equipped with VortexMist technology, it increases humidity by 10% within 15 minutes. Control it remotely via the VeSync app to customize mist settings, schedules, and ambient lighting. Operating quietly at 26dB, it offers both warm and cool mist modes for all-season comfort. Its top-fill design simplifies refills and cleaning, making it ideal for bedrooms, nurseries, and plant care. Backed by a 2-year warranty, this Amazon exclusive humidifier blends smart tech with health-focused innovation.












| ASIN | B0BSFX9YJ2 |
| Best Sellers Rank | 391,478 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 137 in Single Room Humidifiers |
| Brand | Levoit |
| Brand Name | Levoit |
| Capacity | 4.5 litres |
| Colour | White |
| Control Method | Remote |
| Customer Reviews | 4.3 out of 5 stars 1,470 Reviews |
| Filter Type | Demineralization |
| Floor Area | 40 Square Meters |
| Floor area | 40 Square Meters |
| Included Components | 1 x Quick Start Guide, 1 x Smart Humidifier, Aroma Pad, Cleaning Brush, User Manual |
| Item Dimensions D x W x H | 27.4D x 30.4W x 15.2H centimetres |
| Item Shape | Rectangular |
| Item Type Name | Humidifier |
| Item Weight | 2.4 Kilograms |
| Manufacturer | LEVOIT |
| Material | Plastic |
| Model Name | LUH-O451S-WEU |
| Model Number | LUH-O451S-WUK |
| Operation Mode | Automatic |
| Operation mode | Automatic |
| Other Special Features of the Product | Remote Control, Schedule, Smart Vesync APP, Timer, Warm and Cool Mist for Faster and Healthier Relief |
| Part Number | LUH-O451S-WUK |
| Power Source | Corded Electric |
| Product Warranty | 2 year manufacturer guarantee. |
| Room Type | Bedroom |
| Runtime | 45 hours |
| UPC | 810123677078 810043377041 |
| Voltage | 220 Volts (AC) |
| Wattage | 280 watts |
G**A
Levoit do it really well
I bought this for two reasons, 1 - I had previously bought 3 of the same humidifiers from Argos that were the cheapest at £50 and worked fine but the design was terrible and leaked and broke after a year. For £30 more this offered a lot more and looked better design as well as... 2 - ... It was Levoit, I have an air purifier by them which has been great and worked really well. They seem to be spot on with pricing and it is quality stuff in my opinion. In brief, the main part I love about this machine is that it is easy to fill and clean. So many machines you have to fill from the bottom!?!, where as this fills from the top. it easily comes apart to fill and slot back on, as well as all the parts unclip easily to clean. after using for a while they do need cleaning so to be able to separate it out easily is great. Using it is simple, but if you download the app it makes it really useful. One thing I love about this machine which I didn't know it could do, is that you can set the humidity level you want for your room and then set it to auto and it keeps it at that level, turning off when its reached. So no more waking up in a rainforest atmosphere in the morning. Hot and cold air is a boon too as well as being able to turn the display off. It's light, it's silent, it works, you get spare parts with it! For the price of this, it's a little bit more expensive than a cheap humidifier but does everything you need and well.
J**.
Not recommended
I really wanted to *love* this humidifier, but unfortunately there are somethings that really are not designed well. To keep it short and sweet; As others have mentioned, the built in sensor is completely wrong. This is probably fine if you dont need specific humidity, but if you need something more accurate, like for plants, then you have to keep fussing with it manually. Other thing is that it is TOTAL PAIN to clean. They recommend soaking and rinsing - however, this absolutely is not sufficient enough. It is has so many nooks and crannies that if you want to properly clean, you will need to get a tooth brush. If I knew what I knew now, I would have looked for an alternative.
A**G
it works well
near ideal and working well so far. but i don't think you can disassemble the sprouts on the cover for cleaning. it's hard to brush between the gaps there. otherwise perfect.
O**W
Very quiet and does a great job
Having looked around for different humidifiers this one seemed to offer a good overall balance of price whilst being able to automatically maintain a set level of humidity. The unit looks good and has good capacity - I have it set to 70% and it is able to go at least two days without needing a refill. The noise levels are really low which helps as I'm a fussy sleeper. The app is also really good, so I can set it up and let it run remotely. It is super easy to refill and the coloured LED's are a nice touch but I don't use them. Build quality seems pretty good and it doesn't drip water around the unit. If you are after something you can set up and leave to it's own devices whilst being quiet - I'd recommend this.
A**V
Pshhhhh
Does its job well. Very easy to clear. Works nicely with an app. The tank holds enough water for 2-3 nights. The only downside: when you switch the humidifier off and then on (for example, refilling the tank), it doesn't remember your last steam temperature setting. It is a very minor downside of an otherwise solid product.
A**A
Alexa function is great
Two years after still going strong. I like the Alexa function where it turns the humidifier on and off. My daughter loves the mood light function.
S**H
Too much of a phaff!
I purchased this product as I thought it would be useful. When it arrived it was larger than I had thought - my own fault i should have checked the dimensions more carefully. But when I read the instructions I realised it was going to be a pain to live with, and high maintenance. For example you are not meant to it place on a floor, or 30 cm’s near a wall. The water requires changing every day. Then every three days you need to take the thing apart and completely wash and dry the components. I counted 8 pieces to take apart and reassemble - it just seemed such a phaff, I didn’t even take it out the wrapping. I simply boxed back up and processed a return and sent it back. It’s probably good at doing its job, but I could see after a few weeks of use, it would annoy me, and it would end up not being used.
M**K
Big powerful humidifier.
This is a large bit of kit. Even on the minimum setting it churns out a fair bit of mist to raise the humidity. The app s very good. It has a really nice feature for indoor house plants and the care of them using the humidifier. The essential oil dispenser though is rubbish. It doesn’t work. All in all a nice bit of kit. Well made. Good app. Not really any good to use with essential oils.
R**T
flawed by design,Humidity-sensor if off by 30% , settings are only accessible by a weird app
For the price, you’d expect a device that performs decently, but this one falls short. The humidity sensor is wildly inaccurate—when the device indicates 69% humidity, three other sensors, including a calibrated Aranet4, show readings between 42% and 44%. The device features an automatic mode locked at 60%, and adjusting this requires installing a questionable Chinese app that requests personal information. Thankfully, I used a throwaway email for this. Additionally, we noticed some leakage around the device after just four hours of use. I’m relieved I only filled it with about a quarter of its water capacity. This is going back!
T**5
LEVOIT OasisMist Smart – umidificatore 4,5L silenzioso con app, Alexa
Ho acquistato questo umidificatore LEVOIT OasisMist Smart e si è rivelato un prodotto eccellente. La capienza da 4,5 litri garantisce un’autonomia fino a 45 ore, perfetta per ambienti fino a 40㎡ senza doverlo ricaricare continuamente. Mi piace molto la possibilità di scegliere tra nebbia calda e fredda, utile sia in estate che in inverno. Inoltre, il funzionamento è estremamente silenzioso (<26dB), quindi si può usare anche in camera da letto senza alcun disturbo. La gestione tramite app e comandi vocali con Alexa è comodissima: posso programmare timer e livelli di umidità direttamente dal telefono. La funzione di aromaterapia e la luce personalizzabile aggiungono un tocco di relax in più. Il design a riempimento dall’alto (Top Fill) è pratico e rende la pulizia semplice e veloce. Dopo alcune settimane di utilizzo, l’aria è molto più confortevole e il benessere generale è migliorato. In sintesi, un umidificatore smart, silenzioso e versatile, che unisce funzionalità avanzate a un design elegante.
D**I
Je recommande
Humidificateur d’une simplicité d’utilisation ,d’entretien également, une connexion simple et efficace via son mobile et sa capacité de 4,5 l pour le volume d’une pièce considérable et suffisante. Je recommande ce produit pour sa qualité et son côté compact
N**L
Humidificateur juste parfait !
Je suis bluffée par l'efficacité. En premier pour la brume produire, ultra efficace. Zéro bruits même a fond ( ou a peine perceptible ). En plus de la fonction d'humidification il est placé a côté de mon ventilateur (de la même marque) et ça envoi de l'air ultra frais grâce à la brume froide. L'application offre pas mal de possibilités, la fonction automatique, ont choisi le taux souhaitez et le produit s'occupe du reste. Soit en manuel, brume froide ou chaude, 9 niveaux de brume, ont peux éteindre l'écran. Et choisir la veilleuse et la couleur si vous le voulez. Et niveau style, il va un peu partout. Il prend peu de place, et le dessus imitation bois lui donne du style. Entretien facile, mais mettez de l'eau sans calcaire. C'est plus sain. Et en bonus une trappe pour mettre des huiles essentielles sur un coton pour diffuser une bonne odeur plutôt legere. Conclusion : acheter le les yeux fermés.
N**N
Imported in Australia because it's the best
So good we brought a second one. We live in Australia and tried two different from a company starting with B... they were rubbish. It was worth getting it from the UK. This item is great. Just make sure you place on the floor and away from the wall (as per instructions). We initially had on top of a set of draws in tue corner and it was rubbish.
Trustpilot
2 weeks ago
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