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💨 Elevate your air game—breathe better, live smarter.
The LEVOIT Classic300 Ultrasonic Humidifier features a large 6L tank providing up to 60 hours of continuous mist, a 360° rotatable nozzle for customizable airflow, and ultra-quiet operation below 30dB. Designed with a convenient top-fill system and simple knob control, it covers rooms up to 505 square feet with 4x faster humidification, making it perfect for large bedrooms and workspaces. BPA-free and safe for all ages, it ensures easy maintenance and healthier air quality.













| ASIN | B09WQJZ7ZN |
| Best Sellers Rank | #5,106 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #10 in Humidifiers |
| Brand | LEVOIT |
| Brand Name | LEVOIT |
| Capacity | 6 Liters |
| Color | Gray |
| Control Method | Touch |
| Customer Reviews | 4.4 out of 5 stars 32,391 Reviews |
| Filter Type | Physical Filter |
| Floor Area | 505 Square Feet |
| Included Components | 1 × 6L Ultrasonic Top-Fill Humidifier, 1 × Quick Start Guide, Cleaning Brush, User Manual, Water Filter Sponge |
| Item Dimensions D x W x H | 9.7"D x 8.1"W x 13.4"H |
| Item Shape | Round |
| Item Type Name | Top Fill Design, 505 sq ft Coverage for Home, Plants & Whole House, Super Quiet, Easy to Use and Clean, Auto Shut off |
| Item Weight | 4 Pounds |
| Manufacturer | LEVOIT |
| Material | BPA free, suitable for babies and adults |
| Model Name | 6L Ultrasonic Cool Mist Humidifiers for Bedroom Large Room, |
| Model Number | LUH-A603-WUS |
| Operation Mode | Ultrasonic |
| Other Special Features of the Product | 4x Faster Humidification, Lasts up to 60 Hours, One-Step Top-Fill Design, Quiet |
| Part Number | Classic 300 |
| Power Source | ETL Certified AC Power Adapter |
| Room Type | Bedroom, Nursery |
| Runtime | 60 hours |
| Special Feature | 4x Faster Humidification, Lasts up to 60 Hours, One-Step Top-Fill Design, Quiet |
| UPC | 810043377577 |
| Unit Count | 1.0 Count |
| Voltage | 120 Volts |
| Wattage | 25 watts |
E**O
Better than anticipated
Great choice! Works well. Easier to clean, fill and operate than our other two humidifiers. I use tap water yet it doesn’t get scummy from dissolved minerals. Will buy another one when one of the others fails. Does not use expendable filter so operating cost is low. Love the “auto” setting.
C**R
Works well, easy to fill and easy to clean
This is the third Levoit humidifier we've bought. I had to return a digital one because it didn't work and got another analog control one. These analog ones are the way to go for us. KISS. Keep It Simple Skippy. These are very easy to fill and to clean.
K**T
Worth the money!
I have purchased COUNTLESS different humidifies over the years. In the end I never really liked the ones I purchased and would only end up using them for a short amount of time. This one is very well made, the parts are sturdy not like some of the cheap plastic ones I had purchased previously. It is very user friendly, you can fill it up and turn it on and get it going right away. I feel the tank capacity is good sized for your average sized bedroom. I love that it has a display for the humidity instead of having to try and guess what the humidity of the room may be at. It is also quiet which is a huge plus for me as I don't like hearing the loud noise in my bedroom. It has a light function which I don't use as I prefer it dark in the room, but some people may enjoy that feature. I also found it easy to take apart and clean which is always a plus. I have noticed a huge improvement in the humidity level of the room since having purchased this. It is an absolute MUST in the dry cold winter to have something like this it has helped my sinuses a great deal.
Y**N
Still excellent after 3 years — reliable and smart features
I purchased this LEVOIT humidifier about three years ago, and it is still working perfectly with no issues. I always follow the maintenance recommended by the manufacturer, and the unit rewards you with long‑term reliability. The app control is very convenient — it shows humidity levels, schedules, and operation status right on the phone. I regularly check the sponge inside the clear tank and replaced it when the color turns dark brown. Keeping the unit clean is important, and it has been easy to maintain. My only small concern is not knowing exactly when the black ring (where the vapor comes out) should be replaced, but so far it continues to work well. Overall, this is a very good humidifier, and I definitely recommend it. Five stars.
T**2
Just about perfect, but leaking after two weeks use
Update: discovered the leak issue was apparently my mistake. I had moved the humidifier a few inches by picking it up by the water reservoir indented handles. Apparently this was enough to break the pressure seal between the tank and the base. Took the unit apart, checked the float, which was operating fine, and refilled the humidifier. Marked the water level with a crayon and left it in the kitchen sink overnight. Leak had stopped and no water lost. This was operator error on my part. If you have moved your humidifier when water is in the reservoir using the indented handles, there is a risk of leaks developing around the water reservoir and the base. As precaution, I placed a dollar store cake storage pan under the humidifier just in case. Changing my review to five stars. Very happy with the quiet operation, ease of cleaning, affordable replacement filters, and it's ability to raise humidity in our 12' x 15' family room. Purchased four of this model as I trust the brand. Two were sent as gifts, and two are in our home. One began leaking two weeks from purchase. We are adults,no pets, humidifier is on the carpet and stays there. We don't walk through that area. Use soft water only and clean it every few days. Will contact Levoit. We absolutely love the compact shape, easy to clean, basic design. It is quiet and made a great difference in the humidity comfort level. It really does cover the square footage claimed. Other than it leaks, we really like it, but am hesitant to replace the leaking one with the same model. We also bought two Levoit bedroom humidifiers, round 2 liters, and they are fantastic.
J**N
its been great so far
So far so good this thing is awesome. It does a good job as far as like detecting the humidity and then trying to keep up it does like 5% above or 5% below what you said that and it's good I don't feel like it's blowing through the water like some other ones I've had before I love the how you can hook it up to my phone and look at all the live data and see what's done over the months or the year and then also it's pretty easy to control pretty basic it's very quiet easy to refill and just make sure you buy those drops or you gotta put something in your water cause otherwise the water will turn all white and in the air and you get a white dust everywhere but that's with any humidifier
T**B
Excellent Quality & Effectiveness
The “LEVOIT Classic300S Ultrasonic Smart Top Fill Humidifier worked very well for me. This’s is the first and only humidifier I’ve owned. It is exactly as pictured on Amazon, and functions well. It’s a quality product - performance and durability. I used it nearly 24/7 for two and half years. I opted for a large tank which turned out to be a good decision. The larger the tank, the less often it needs to be filled. Though I was overzealous in hoping it could humidify a very large open-concept living room and kitchen. It did pretty well considering I was trying to accommodate a larger area than it was meant to cover. I regularly used all three mist “output” options to adjust for how the weather impacted the amount of humidity I needed. The vent for the mist can rotate which I found very convenient. The light had just the right amount of illumination. The scent infuser is the only thing I didn’t use, due to allergies not the product. The water container is very easy to clean. Since I wasn’t used to having a humidifier I often forgot to clean the inside the base of the humidifier (where the water runs through the system). That led to a challenge. There were some tiny spaces that needed cleaning but couldn’t be reached by anything I tried - sponge, finger, mini scrub brush, toothbrush, tiny bottle brush. I think it was just the structural design that impacted the reachability of those area. (That might be true for most humidifiers. I don’t know since this was my first one.) Eventually those tiny areas inside the base developed a nasty build up. Ultimately I had to throw it out because it wasn’t healthy to continue using it. That was the only down side of this product. Because I wasn’t diligent in cleaning it sooner and more frequently, perhaps the cleaning issue could have been avoided. If I knew a way to reach those spaces, it would be the perfect humidifier and i would definitely buy it again. Overall it’s an excellent humidifier and very effective in its purpose. Based on this singular experience, I consider Levoit a quality brand, tried and true, and wouldn’t hesitate to buy their products.
N**T
Life saver
I cannot recommend this LEVOIT humidifier enough, and it easily earns 5 stars from us. It is incredibly quiet and highly effective, providing the perfect amount of moisture to the air without making any disruptive noise. Nightlight in 2 brightness settings neither is disruptive. Full refill capacity easy to fill and clean, used for 4 nights on auto setting When our child was diagnosed with pneumonia, this machine truly gave us our sleep back by easing their congestion and letting them rest comfortably through the night. It is a fantastic, reliable product that delivered exactly when we needed it most.
H**Y
Excellent produit, mesure fiable et utilisation pratique
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.
K**P
Excellent Humidifier
Works well . Do use 220V to 110 converter , great humidifier
M**.
Es un muy buen aparato
Es muy práctico, es automático en cuanto baja la humedad se enciende y al alcanzar su nivel detiene, cuenta con un tanque grande, no hay que estar rellenando de agua muy seguido, si se puede agregar aroma en su charola pero no aromatiza mucho.
Z**N
Aparato moderno y eficiente.
Excelente. Tengo varios humidificadores. Este es moderno; fácil de recargar el agua, aun con el aparato en marcha. Manejo a través de la app y Wifi fácil, útil y cómodo. Puede cubrir una superficie tal y como se indica, pero hay que pensar en una ubicación adecuada. El higrómetro incorporado es relativamente fiable. Hay que repetir ajustes en Auto para encontrar punto óptimo de humedad relativa para que corresponda a la humedad en el recinto - disponiendo, claro está, de otros higrómetros para comparar. Muy silencioso. Hay que colocarlo a media altura para facilitar la recarga del agua (una jarra grande es muy adecuada) - el manejo de la tapa es fácil y no es necesario quitar el recipiente del cuerpo principal para rellenarlo bajo el grifo (salvo para la limpieza). Magnífica compra.
E**S
Simplemente genial
Utilizo humidificadores desde hace años y este modelo me ha encantado, tiene buena potencia, es super silencioso, tiene gran capacidad de agua por los que dura las 24 horas sin problemas. Lo recomiendo
Trustpilot
3 days ago
1 month ago