

💨 Elevate your air game—smart, silent, and seriously refreshing!
The LEVOIT Classic 300S is a smart ultrasonic humidifier designed for large rooms up to 505 sq ft. Featuring a massive 6L tank, it provides up to 60 hours of quiet mist output at ≤30dB. With built-in humidity sensors, Auto Mode maintains ideal moisture levels automatically. Control it remotely via the VeSync app or voice assistants like Alexa and Google. Its top-fill design simplifies refills and cleaning, while an essential oil tray adds aromatherapy benefits. Perfect for bedrooms, nurseries, and plant care, it combines health, convenience, and tech-savvy comfort in one sleek package.












| ASIN | B08HS45N13 |
| Best Sellers Rank | #253 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #8 in Humidifiers |
| Brand | LEVOIT |
| Color | Gray |
| Customer Reviews | 4.4 4.4 out of 5 stars (31,266) |
| Date First Available | October 31, 2020 |
| Floor Area | 505 Square Feet |
| Included Components | 1 × 6L Ultrasonic Smart Top-Fill Humidifier, Aroma Pad, Cleaning Brush, User Manual, Water Filter Sponge |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4.4 pounds |
| Item model number | Classic 300S |
| Manufacture Year | 2021 |
| Manufacturer | LEVOIT |
| Model Name | Humidifiers for Bedroom Large Room Home, |
| Operation Mode | Ultrasonic |
| Product Dimensions | 9.6"D x 7.5"W x 13.4"H |
| Room Type | Baby,Bedroom,Room |
| Shape | Square |
| Special Feature | Easy to Clean, Smart Control, Top Fill |
| UPC | 810043373210 |
| Unit Count | 1 Count |
| Voltage | 120.0 |
| Wattage | 26 watts |
A**A
This is the BEST Humidifier! WOW What a Difference it Makes.
This humidifier is amazing! I had purchased a seriously flawed evaporative humidifer that I had to return and then I ordered this ultrasonic one. Right out of the box it really gets the job done! It couldn't be easier to set up. Open box, fill up and turn on. I leave it on medium and it runs more than 24 hrs without refilling. It's quiet too even on the regular setting if you choose to use it in the bedroom. Since I use it for allergy relief I asked my new BFF ChatGPT the best way to place it in my living room. I have it set up elevated near to my chair and the humidity level makes all the difference! It humidifies a decent amount of space too. I am a senior and it's not too heavy to fill it in the kitchen sink and carry it back out to the living room. So far I don't see any white dust and I am using tap water even though they recommend the filtered water. I just ordered their demineralization cartridges too just in case. I'm very happy with my purchase. I think you will be too! Just buy this one first and you'll be all set!
S**.
Buying distilled water can add up but its worth it and I dont' have to clean it often.
Excellent humidifier – I don’t know why I waited so long I absolutely love LEVOIT products, and this humidifier is no exception. I’ve purchased three LEVOIT humidifiers in the past two weeks, and all of them have been working flawlessly. Setup was quick and easy, the top-fill design is very convenient, and cleaning and assembling the unit is straightforward. The app is a big plus—it’s easy to control and gives you more useful information than just basic humidity readings, which I really appreciate. Before using these humidifiers, the humidity in our house was around 25%, which is very dry and unhealthy. Since adding one to our bedroom, I sleep noticeably better, wake up without headaches, and no longer have a dry nose or mouth in the morning. As a bonus, our plants in the basement are loving it too—no more curling leaves, brown edges, or leaves falling off. Overall, I’m extremely happy with this purchase and honestly don’t know why I waited so long. Strongly recommend LEVOIT if you’re looking for a reliable, well-designed humidifier.
1**6
good humidifier
Works well once you get the hang of it. The hygrometer accuracy is questionable, especially after filling the tank. After it's run for an hour or so it stabilizes to a reasonably close approximation of room humidity. The app is very good, once I realized I had to scroll the screen to see the target humidity, which should be obvious and featured on the screen. The humidifier is easy to fill and is very quiet.
R**H
A nice quiet highly functional humidifier.
This works well for us. The mist output is great. It is quiet and the night light is nice. We have two of these and schedule them to come on at different times when we are in those rooms. It gas an aroma port but we do not use it. Easy to clean and have seen no mold with using distilled water.
C**U
Great humidifier with access to the device through an app
Works great. The tank is large, so it lasts a while. We have to run it pretty much nonstop to get to the humidity level that we want, which is between 40 and 45. It took a couple days to get up to that, too. If you just run it at night then it will struggle to get up past 30, that was my experience. But that's probably any humidifier. The diffuser tray is a neat feature. I haven't tried it yet. I have been just using tap water, not distilled. We fill it so much that buying distilled would be too much of a burden. I know that makes it get buildup faster, but it is the only sustainable process for us. I bought an air quality monitor because I read a review that using tap water would cause some bad readings, but I have not seen that. Maybe it is better because we have well water. Not sure. The noise level is quiet. The lights can all be turned off so it is great for a bedroom. I like being able to have access on the app and that the unit displays the humidity so you don't need a separate monitor for that. All in all it's probably the best humidifier that I have owned and I have had a few.
R**I
Liked it so much we bought another...can't go wrong here
Great little humidifier! We had one from last year...still working flawless on distilled water... and added two more for different rooms in the house to supplement our existing whole house humidifier. Quiet, easy to use and the app control is a must which has been flawless.
C**G
Highly recommend
While I have only been using the Levoit Humidifier for a few days, I love it so far. We use in our living room. I got it to help with skin dryness and a dry cough that comes from the winter. I didn’t realize how much difference it would also make for my dry eyes, but it has also helped with that too. It was very easy to set up. The large capacity is very helpful and the top fill tank makes for less leaks and spills when refilling. I love the auto mode, which keeps the humidity in the room between 40-50%. There are many helpful features, such as a night light, reminder to clean the humidifier, sleep mode, aroma box, to name a few. The app is very easy to use and allows you to adjust the humidification even if you’re not at home. I would highly recommend this humidifier..
C**N
Muy buena capacidad en litros, por lo que puede durar hasta varios días (en automático). La app para controlarlo desde el cel es LO MEJOR.
H**Y
J'ai acheté ce produit notamment pour fournir un meilleur taux d'humidité à mes plantes d'intérieur. Pour le moment, rien à redire, il fonctionne parfaitement. La fonction 'Auto' lui permet de se déclencher dès que le niveau d'humidité passe sous un certain seuil et de s'arrêter de la même manière lorsque celui-ci atteint le niveau fixé. Il est aussi possible d'utiliser l'appareil en mode 'Manuel' en le déclenchant soit même et choisissant un niveau de brumisation. Le remplissage se fait très simplement par le haut et le contrôle via l'application VeSync est un petit plus pratique.
J**V
great humidifier. Holds adequate water for hours, multiple settings, night light and is quiet. I do not need all the bells and whistles of apps or remote control but that is also provided. I have two and both have been working continuously since the arrived. No issues so far. Can recommend.
H**.
Works great for our living room (8x5m) I also got it to work in home assistant. I bought this model specifically for using it in home assistant and because of the good reviews. +: Big tank, silent, clear display, the cats stay away from it, app works great - : You have to create an account (I read somewhere that a credit card is needed. This is not true!). If the company takes down the service, the home assistant integration stops working. All together a great machine!
K**P
Works well . Do use 220V to 110 converter , great humidifier
Trustpilot
2 weeks ago
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