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The LEVOIT Classic 300S is a smart ultrasonic cool mist humidifier featuring a large 6L top-fill tank, whisper-quiet operation below 30dB, and smart app plus voice control compatibility with Alexa and Google Assistant. Designed for rooms up to 47㎡, it offers up to 60 hours runtime, intelligent auto humidity adjustment, and doubles as an essential oil diffuser, making it the perfect blend of tech-savvy convenience and wellness for modern homes.













| ASIN | B09Q37S6K5 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 86,263 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 79 in Humidifiers |
| Certification | CE certified, RoHS certified |
| Colour | Blue |
| Customer Reviews | 4.2 4.2 out of 5 stars (20,175) |
| Date First Available | 13 May 2022 |
| Included Components | 1 x Quick Start Guide, 1 x Smart Ultrasonic Humidifier, Aroma Pad, Cleaning Brush, User Manual |
| Item Package Quantity | 1 |
| Item Weight | 2 kg |
| Item model number | Classic 300S |
| Manufacturer | LEVOIT |
| Number of Pieces | 1 |
| Part Number | Classic 300S |
| Pattern | Single |
| Product Dimensions | 17.5 x 23 x 32 cm; 2 kg |
| Shape | Square |
| Size | 24.5 cm x 19.2 cm x 34 cm |
| Sound level | 30 Decibels |
| Special Features | Auto & Sleep Mode (<30 dB), Display Off Function, Waterless Auto Shut-off, Connection via 2. |
| Style | 6L Smart Cool Mist Humidifier |
| Voltage | 220 Volts |
| Wattage | 26 watts |
V**F
Great humidifier
First time I’ve used a humidifier. It’s great! Really good to have a big tank that lasts for 8hrs x 3 nights (on 40-50% setting). Bought this when I had a nasty head cold and blocked nose that forced me to ‘mouth breathe’. I kept waking in the middle of the night with my throat on fire - so dry and painful. This humidifer worked brilliantly to moisten the air in my bedroom at night. I have it beside my bed with the mister-nozzle angled away. Although I’ve recovered from the cold I’m still using this at night - my houseplants have never been healthier and I swear it’s rejuvenating my skin, too. Bonus! It came ready to use straight out of the box with zero assembly required. The large water tank is great - I fill it every 3 days and it runs all night on about 40% setting, for 8 hrs a night. It makes a very gentle low burrrrrrr sound that I find very calming and helps me sleep. Definitely a good purchase and already recommended to my parents.
J**A
Amazing Humidifier.
I've had this laying around for some time now as I just found it really difficult to get round to setting it up mentally. But today I have eventually gotten round to using it, I ordered distilled water a few days ago, and I have not too long ago just set it up after cleaning the device. It is a really easy and simple to use device, of course as with any product I'd recommend just reading the manual to actually understand exactly what you're meant to do with cleaning and such, but it is really easy to understand! I purchased this as I have been having sleep issues and general living issues, and after getting a air quality tracker, I found out my room had very low humidity. So this purchase has been made for my future health. And so far has made me feel a little better, and hoping it will keep doing so.
V**I
Effective and Quiet Humidifier with Great Features
The LEVOIT 3L Humidifier is a fantastic product! It’s highly effective at improving air quality, and I love the night light feature, which adds a cozy touch to the room. The cool mist helps keep the air fresh, and the quiet operation is perfect for a peaceful night’s sleep. The 360° rotation nozzle is a great design feature, and I’ve noticed the humidifier can run for up to 25 hours, which is ideal for overnight use. The auto-off feature adds an extra layer of convenience. It also comes with 2 filter sponges, which is a nice bonus. I highly recommend this humidifier for anyone looking to improve air quality in their home or office.
D**A
Game changer - wouldn't be without it
Finally, I took the plunge and purchased this unit. I own other Levoit products (air purifier) and found their brand to be of good quality. This unit did not disappoint. What a fantastic size - gives off a directional controlled mist at your fingertips, lasts for at least three hours (on lowest setting) and most importantly, has almost resolved a chesty cough due to dryness in the home. I love it. When this unit is next on a deal, I'll be making another purchase. The one I have lives between the living room and the bedroom at night. The single best purchase of a humidifier you'll ever make.
A**R
Works fine
Kept waking up with a soar throat and my eye would sting in the evenings. I also had really chapped lips and dry skin but after a night with the humidifier it was all gone. Definitely worth buying one. Only issues I have is that the packaging wasn’t protected or sealed. The description also likes to imply that it comes with essential oils but it doesn’t. Would have been nice if it did though.
P**T
Best humidifier I have ever owned
This humidifier is superb and I would recommend it without hesitation. It's very quiet indeed and I'm sensitive to extraneous noise. It's got a very large tank which means that you don't have to refill it so often. It looks quite attractive and is much easier to clean than previous humidifiers that I have owned. It's well worth downloading the app because you can then specify the required humidity level. In practice, this humidifier is very good at keeping the humidity level constant, as indicated by a separate measurement elsewhere in the room. I was overwhelmed by the choice on Amazon and am REALLY glad I went for this one!
R**E
Decent Concept, Durability Concerns - Not a Long-Term Solution
Pros: Compact design Simple to operate with twist-on controls Potentially useful for small spaces Cons: Limited noticeable humidity impact Fragile construction (easily damaged if dropped) Lacks advanced features like humidity sensors Detailed Review: I purchased the Levoit Dual 150 Humidifier hoping to provide some comfort for my pregnant partner, but found its performance underwhelming. Despite running the device multiple times, I struggled to detect any significant humidity changes in the room. The build quality is disappointing - a simple fall from a cupboard resulted in a cracked water container, rendering the entire unit unusable. For a device in this price range, I expected more robust materials. While the humidifier has some appealing features like easy filling and quiet operation, its overall effectiveness and durability make it hard to recommend. Those seeking consistent humidity control might want to invest in a more reliable model with better build quality. Bottom line: Approach with caution, especially if you need consistent performance.
J**B
Brilliant!
Bought this to help me sleep when I was suffering with a post-nasal drip after a heavy cold. I was coughing literally all night and my throat was really sore. Noticed on an NHS website that a humidifier could help at night and was so desperate for sleep that I decided to try this. And it really does help! It is brilliant - very easy to set up, very quiet, and I immediately got a great night's sleep. I don't know why some reviews say you can't turn off the light - of course you can! - just press the light button on the front for light on/off. Highly recommended. Reasonably priced too.
A**E
Nach längerer Suche haben wir uns für den Levoit Top-Fill Luftbefeuchter entschieden – und sind rundum zufrieden. Das Gerät ist leise, effizient und vor allem unglaublich leicht zu bedienen. Dank der Top-Fill-Funktion lässt es sich bequem von oben mit Wasser befüllen, ohne dass man den Tank jedes Mal umständlich abnehmen oder drehen muss. Besonders beeindruckt bin ich von: ✔ Sehr leisem Betrieb – Selbst auf der höheren Stufe kaum hörbar, ideal für Schlafzimmer oder Kinderzimmer. ✔ Gleichmäßiger Befeuchtung – Das Raumklima verbessert sich spürbar, trockene Haut und trockene Luft gehören der Vergangenheit an. ✔ Pflegeleichtem Design – Die Reinigung ist einfach, was für ein hygienisches Gerät absolut entscheidend ist. ✔ Großer Wasserfüllmenge – Hält problemlos durch die Nacht, ohne nachzufüllen. ✔ Angenehmer Bedienung – Intuitive Tasten, klare Anzeige, keine umständlichen Einstellungen. Seit wir den Luftbefeuchter nutzen, schläft die ganze Familie besser. Auch Pflanzen und Holzmöbel profitieren sichtbar von der höheren Luftfeuchtigkeit. Das Gerät wirkt hochwertig verarbeitet, läuft stabil und tropft nicht. Fazit: Ein zuverlässiger, moderner Luftbefeuchter, der hält, was er verspricht. Wer nach einer leisen, leicht zu reinigenden und effektiven Lösung für trockene Räume sucht, macht mit dem Levoit Top-Fill Luftbefeuchter definitiv alles richtig. Empfehlung! ✔️🌿💧
S**O
Il prodotto lo vedere in foto può piacere o non piacere. Ma fa il suo lavoro. Molto funzionale perché si può impostare da remoto ed ottimo per la notte fa pochissimo rumore ovviamente non vi consiglio di metterlo molto vicino al letto. La luce è discreta funziona perfettamente con Alexa ma dopo un po’ credo che deve apprendere bene i comandi. L’unico difetto che non ha un app per Apple Watch che sarebbe molto comodo di solito io non dormo con il telefono vicino ma con l’Apple Watch al polpo e mi sarebbe piaciuta una App per lui come tanti altri dispositivi Smart che possiedo che oltre a gestire con la voce tramite Alexa anche con il mio orologio non sarebbe male. Per il resto super consigliato e non pensavo migliorasse così tanto il sonno. Ti svegli senza la gola secca.
P**U
I had to buy a second piece as I love it so much ! So you can imagine it’s good!
S**S
Been using this for little over a month now and I think it's great! My room is quite small so I don't fill it to the max, but about 1/3rd is typically enough for the night and it does shut off on its own which is convenient. Plus the only indicator it's sleep mode is a small red light which isn't bothersome at all. I use this thing with distilled water and essential oils more or less every night and I clean it out with vinegar and water (as how instructed) only once a week instead of every 3 days but even then I've had no mold or weird smell problems. It's actually super easy to clean and it's really light despite its size which is a huge help for someone like me who has ADHD and weak noodle arms. The only reason I put 4 stars for the noise level is because there IS a hum that can be audibly heard (disclaimer: my small room and I put this pretty close to my bed, so it might not even be audible in a big room) so it's not totally silent. Ironically, for me personally this is better because it now doubles as a white noise machine which is awesome lol. All in all this has saved my room and my skin from being dry as hell all while looking pretty sleek so I'd recommend it!
P**A
This product is the perfect size for your bedroom. It is easy to fill with water. It’s quiet and makes no noise for those who like their room quiet. It’s very easy to take apart for cleaning. The mist control is easy to use. I bought it for my teenage daughter, it’s functional and helps with keeping the moisture in your room.
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