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Availability:
In Stock.
Arrives
Sunday, Oct 11
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Set name: 6L Smart Blue
Features
- Effortless Comfort with Auto Mode: Advanced sensors adjust humidity levels to maintain a consistent and healthy environment. Bid farewell to dry air and say hello to optimal well-being
- Powerful and Efficient Performance: Enjoy 4x faster humidification, swiftly relieving dry discomfort. It runs for up to 60 hours, covering an area of 505 ft2, ensuring the better humidification tailored for you
- Multi-Role Suitable for All-day Care: Begin your day with morning aromatherapy. Thrive during family time with Auto Mode in the afternoon. Evening brings plant care with Plant Mode. Finally, enjoy sweet dreams with Sleep Mode
- Super-Smart App Control: Monitor and adjust your home humidifier from anywhere, anytime. Break spatial barriers, customize schedules, and let it work its magic. Experience effortless convenience
- Hassle-free Refill, Impeccable Cleanliness: 1-Step top refill ensures a leak-free pour. No corner is left untouched. Say goodbye to troublesome bottom refills, incomplete cleaning, and unhealthy mist
Description
MORE POWERFUL AND SMART GIFTS FOR YOU! Note: Distilled/ purified water is preferred for your health. Specifications: Product Dimensions: 9.6 × 7.5 × 13.4 in / 24.5 × 19.2 × 34 cm Product Weight: 4.3 lb / 2 kg Whisper-Quiet Operation: ≤ 30dB Effective Range: 215–505 ft² / 20–47 m² Material: BPA-free, suitable for babies and adults Features: √ Extra Large Water Tank of 6L √ The operation Lasts Up to 60 Hours, with 7 Nights of Sleep √ Essential Oil Tray √ Free VeSync App and Smart Controls √ Ultra-Quiet Operation √ Night Light √ Zero Light Pollution: The display light can be turned off completely √ 360 Rotating Nozzle √ Automatic Shut-Off Function √ ETL Certified For Safety and Reliability √ It comes with Cleaning Brush TROUBLESHOOTING： The display shows the No Water Indicator incorrectly: 1. Please ensure the arrow above the LED display is aligned with the indicator line on the base to ensure the water tank is properly on the base. 2. Check the max water line to see if there is too much water in the tank and base chamber. Pour out extra water if water is over the max line. 3. Check and clean the Water Outlet Valve. 4. Check whether the Float Brackets rotate smoothly and clean them. WATER FILTER REPLACEMENT: Please search B09ZY9N6PD or Levoit humidifier replacement filter which can extend the life of your humidifier aroma padsREPLACEMENT: Please search B0B8MD45FB or Levoit aroma pads for more information which can help emit a more potent fragrance and protect the fragrance box.
Brand: Levoit
Special Feature: Easy Clean, Smart Control, Top Fill
Color: Blue
Capacity: 6 liters
Floor Area: 505 square_feet
Other Special Features of the Product: Easy Clean, Smart Control, Top Fill
Capacity: 6 liters
Floor Area: 505 square_feet
Operation Mode: Ultrasonic
Room Type: Bedroom
Voltage: 120
Wattage: 26 watts
Power Source: ETL Certified AC Power Adapter
Control Method: App
Filter Type: Wick
Runtime: 60 hours
Item Dimensions D x W x H: 9.6"D x 7.5"W x 13.4"H
Item Weight: 4.3 pounds
Color: Blue
Item Shape: Square
Brand Name: Levoit
Model Name: LEVOIT Classic300S Ultrasonic Smart Top Fill Humidifier,
Model Number: Classic 300S
Included Components: 1 × 6L Ultrasonic Smart Top-Fill Humidifier, Aroma Pad, Cleaning Brush, User Manual, Water Filter Sponge
UPC: 810043375191
Warranty Description: Satisfaction Guaranteed Experiencing issues? Our California-based Customer Support Team is here to help. If your product is defective, don’t worry about shipping it back. We’ll send you a replacement right away!
Unit Count: 1 Count
Number of Packs: 1
Manufacturer: LEVOIT
Manufacture Year: 2023
Item Type Name: Extra Large 6L Tank for Whole Family, APP & Voice Control, Humidity Setting with Sensor, Quiet Sleep Mode, Night Light, Essential Oil Diffuser
Part Number: Classic 300S
Material: BPA free, suitable for babies and adults
Item Highlight: APP & Voice Control, Essential Oil Diffuser, Humidity Setting with Sensor, Quiet Sleep Mode, Night Light
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Oct 11
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Set name: 6L Smart Blue
This is my second humidifier of this same brand and model. Using them has enhanced my use of lubricating eye drops, and between them they are helping alleviate my dry eye issue. I use only distilled water but you can also use tap water or purified water. If you use tap water, you will need to empty the water and clean all the parts that get wet every day! Otherwise, mineral deposits build up and reduce both the efficiency of the product as well as the purity of the mist. It's very easy to use, and can be paired with an app to enable remote control ability through a smart phone. Frankly, it's so easy to use manually that I don't bother with yet another app! It isn't hard to clean this humidifier but there are quite a few parts to clean, which is one reason I use only distilled water! You don't get the mineral deposit build up and cleaning can be done much less frequently. How reliable this humidifier is over time remains to be seen. I've only been using one for about 10 days and the second one just arrived today. If one or the other craters in a month or two, I will update my review.
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Reviewed in the United States on August 25, 2026 by J.D.
Set name: 6.2L Smart&Easy Clean
After researching multiple humidifiers, I settled on this Levoit 650S and I'm honestly blown away by it, enough to write a review. The designs and the features are just so over the top, you can tell they put a lot of care into a humidifier which is not a device that typically gets much thought. I'm coming from an old basic sunbeam ultrasonic unit which was loud, had to be refilled at the sink (from the bottom) and impossible to clean. This Levoit unit blows it away and it has so many features I didn't even expect. Automation & Smart Features: If you're considering this unit, it's probably for the smart features. And it's way more comprehensive than I anticipated. If you've ever set up a smart bulb, the setup and app function is very similar. You can set schedules, timers, mist intensity, change the light temperature and brightness and target what humidity level you want. There are even "scenes" I don't quite understand yet. For my schedule, I run my unit at 50% humidity during the day with the light on in daylight hue, from 9AM to 9PM. From 9PM to 9AM, the light transitions to warm 2700k, 50% brightness, and I target 45% humidity during the night. This schedule took about 5 minutes to setup. Bit of a learning curve as with any new app, but not too convoluted. Since the system automatically detects ambient humidity, you can use that as a target like a thermostat and let it do its thing. It will automatically turn on and off as needed. I didn't expect this, I was mostly just looking for something I could schedule on and off, but this is way more accurate. 45% - 50% is ideal for house plants. Above 60% you risk mold growth. So it's best to have a unit which maintains a target, rather than guessing with an on/off switch. In addition, the app keeps a history of everything, almost like a fitness app. It constantly records humidity levels, so you can see (if you wanted) what humidity was like during the night, even if your unit isn't running. Then maybe adjust it for your sleep to figure out what's best. A bit superfluous to track humidity like this, but again I appreciate the effort by Levoit. Aesthetics & Nightlight: So...the design is beautiful. Yes a humidifier is beautiful. The big tank is nicely shaped and crystal clear like glass, and the central steam column with the night light creates a very nice aesthetic. The light is perfect for a night light. Some people complained it was too dim and I think they're missing the point. It just looks nice in a pitch black room. That's it. If it were any brighter, it would be bothersome to have on at night. This is great on a night stand, though you may want the smaller model. The front plate displays the current humidity. The LEDs on the front are white and not too bright for a dark room. I've added an image and it seems brighter in the photo than it really is. It's similar to an old alarm clock, and the numbers are big and easy to read from a distance. The entire front can also be turned off if you want no lights at all. The controls are touch activated, but I mostly interact via my phone. Output & Noise: I have it set to run automatically 24/7, so I set it to the gentle/lowest setting which is completely inaudible. At the maximum setting, it can really pump out mist and is no louder than a desktop computer fan. Aromatherapy: I didn't even know this existed when I bought it, but there's a little internal tray you can add essential oils to. Haven't tried this yet, but I intend to. Orange, Lemon and Lavender would be nice. Maybe some sandalwood. Filling & Cleaning: Unlike my old sunbeam, the main base of this unit stays dry, with a wet tray over base which the tank connects to. So you pull out the wet tray and run it through the dishwasher, theoretically keeping the main unit completely clean of mold or mineral deposits as it doesn't come into contact with water. This is a HUGE feature as my old sunbeam was impossible to clean. The tank sat right into the base, so there was always water in a base filled with electronics you couldn't get wet. Again, by comparison, completely thoughtless. It's the little things that come from regular use which determine whether a product is just "meh" or "I love this thing". And this is in the latter category. I used tap water in my last unit, and we have great tap water in Colorado. But I'm using filtered Zero Water this time to avoid any mineral build up, along with stripping out chlorine and fluoride. Only pure water is emitted this way. Since the unit can be refilled from the top, you can take smaller pitchers of water to refill/top up and not have to haul a large tank. Great for older people, much more manageable. And the tank is quite large, it will last a few days of continual use without a refill. Overall, just refilling it is much less of a pain than the sunbeam was. Value: I got this on sale for a bit over $70 which I think is a great price given the features. Lots of other uglier, standard units are priced at this level. Levoit makes a lot of humidifiers and I actually think this is their best model. Highly recommended.
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Reviewed in the United States on July 15, 2026 by B. Robinson
Set name: 6.2L Easy Clean
This product has been great so far! It is extremely quiet. Honestly I don’t think it makes any noise. It is easy to take apart and wash. The night light has 2 settings and it’s a the perfect amount of soft warm light. The light kind of looks like a lava lamp when turned on and that makes it soothing and fun to look at. I have this in my living room and it has upped the humidity. I bought a brita pitcher and I use filtered tap water. This humidifier is effective and adjustable. It also doesn’t leave a film or any residue like other humidifiers. I am really impressed.
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Reviewed in the United States on June 27, 2026 by Wes
Set name: 6L Smart Grey
I’ve had this device for a couple weeks and have a few issues I’d like to point out: The ‘low’ setting produces a relatively loud high-pitched sound that I’m very sensitive to, so I cannot sleep with it on low. Fortunately, I use the auto setting, which rarely drops to low before turning off. The noise seems to come from the ultrasonic diaphragm, not the fan or other components, indicating the device is likely operating as intended. I've seen similar behavior in other ultrasonic humidifiers after trying several models. Ironically, medium/high settings are quieter than low and just produce more mist without that dreadful high-pitch sound. The app should not be necessary for all features. Out of the box, the available settings are low, medium, high, and auto. Auto defaults to 50% relative humidity, which is unreasonable, as no online resource I could find recommends an indoor relative humidity that high. For use in winter the commonly recommended range is 30-40%, and anything higher could encourage mold growth or excessive condensation. The app is needed to adjust the target humidity, which I strongly recommend you do, otherwise, you risk wasting power, water, and creating adverse effects from excess humidity. The device really should have an additional button to adjust target humidity, or repurpose an existing like holding the power level button or something which could be added in firmware. Auto mode also needs improvement. It runs the humidifier full blast until it exceeds your target by 5% and stops, not restarting until humidity falls 5% below the target. When I set my target to reasonable 35%, the room stayed very dry at under 30%, and the humidifier barely ran leaving the room quite uncomfortable. I adjusted to 45%, so it starts at 40% and runs to 50%, which I’ve found is a nice balance where the room mostly hangs closer to 40%. However, auto mode mostly runs on high, producing an excessive amount of vapor. I had to push the humidifier to the edge of my dresser to avoid moisture on the wall. I can only imagine using this on a shorter nightstand next to your bed risks soaking your floor or bed with how much mist this thing can kick out. Additionally, firmware updates are applied when connected to the app, indicating potential fixes for some issues I’ve encountered could be made. The 10% range in auto mode is far too large. I believe a 5% range would be much more ideal. I’d like to be able to set to 40%, it would then run until 42.5% and start again after falling to 37.5%, maintaining a more comfortable and controlled humidity level. Limiting mist power in auto would also help. My previous Winix humidifier allowed you to set the humidity target and limit power level. I would prefer limiting mist to medium to avoid any issues with excessive moisture when on the high setting. I also found a bug. The device allows turning off the display while activating the nightlight, but in the app, if you turn off the display, it reactivates when you turn on the nightlight. This requires manual adjustments on the device itself before bed, which is inconvenient and can be fixed in the app. Despite these issues, I still consider this a very good product. It's visually appealing, unlike most humidifiers which look like an unsightly medical device, and it works well. It puts water in the air, runs quietly (except on low if you're sensitive to high pitch sounds), and its 'smart' features work relatively well.
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Reviewed in the United States on February 17, 2025 by Dayv B
Set name: 6.2L Smart&Easy Clean
This was a life saver for me after having sinus surgery. I bought it because of tank size (and maybe the essential oil duffuser) never thinking i would really use the app or the bells and whistles. I love this! Very simple to clean, the app is very useful for helping you get the humidity needed just right and for all your instructions. Thanks to the app I found the turbo setting which I did not know about along with other features. Very quiet. Nightlight if wanted. You can turn out all the lights on the control panel for complete darkness.
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Reviewed in the United States on September 1, 2026 by Amazon Customer
Set name: 6L Smart Grey
I love the humidifier and especially the app! It is SO quiet I don’t even know it’s on and very easy to set up & run! Everything I need is right in the front & easy to get to like refilling the reservoir and adjusting the settings. I live in TX where humidity is high but this humidifier adjusts the mist accordingly. My husband is not coughing as much so the cool air has been effective in eliminating that! 🙏 I’m also using distilled water to keep it as clean as possible. I think I made a smart decision when I purchased the Classic 300S humidifier!❤️ I live in TX where humidity is high but the Classic 300S keeps the humidity low & and very comfortable.
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Reviewed in the United States on July 21, 2026 by S J M
Set name: 6L Smart Grey
I have four or five humidifiers (heated, cold, wicks) and this is by far the best I've found. (A friend recommended it.) * It's got a large tank that's easy to lift off and fill. * It's quiet. * It seems to do a better job of putting moisture into the air than the others. It's replaced my old favorite.
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Reviewed in the United States on September 8, 2026 by John Morris
Set name: 6L Smart Grey
Update 9/26/24: After my old humidifier started leaking and died, I bought the LEVOIT OasisMist 1000S. This one has the entire tank at the bottom (which is huge, holds 10liters of water) and the top part that has the screen/humidifier parts that you can remove from the bottom/tank. The tank is just one piece of plastic instead of multiple pieces like my old one so I highly doubt it will end up leaking (knock on wood!). I think I would recommend this one, just because I know the tank is a lot more sturdy than the other one, the tank holds a lot more water (I refill every other day), and it does all the same things the other one did (control with your phone, that kind of stuff). I’ll update if something happens to this one lol Update 3/21/24: Pretty bummed because I really liked this humidifier (I purchased the 300s) but the tank started leaking a few days ago. Bought it and been using it since last November pretty much 24/7 except when I would leave to go out (if I would remember to turn it off lol). The other day I noticed the humidifier was showing the reading of 85% humidity which I knew was way off since I live in Colorado and even when I have the humidifier turned on it rarely gets up to 40% in my room. I noticed there was water all around the tank and on my carpet and I read that off readings on the humidifier was due to the sensor getting wet so I emptied the tank, cleaned the entire thing out plus the base and let it dry for a Cpl hours then filled it back up and ran it again. The % this time wasn’t as high but still off and the next hour or so it kept going down until it got to 40% but then I noticed it going back up. Went to check on it and water was all over the tank again so I knew there definitely was a leak. Put the (almost) full tank in my sink and the next morning there was only 1/4 water left in it. I’m thinking the water is leaking out from where the clear plastic on the sides meets the white plastic on the bottom of the tank. So I’m going to have to change my review from 5 stars to 2 because I only got a couple months out of it before it died. Still going to give it a 2 though because I really did like this humidifier. Being able to control and adjust the settings easily with my phone and it was super easy to clean. Just wish it the tank didn’t start leaking! Also btw in my previous review I said I didn’t notice any sediment/gunk forming in the bottom. I eventually did but it was easy to clean off in the sink with some warm water and a non-abrasive scrub brush. I definitely think changing the filters regularly helped keep that stuff from forming. I’m not so sure about the humidifier drops but I’ll still use them in my next humidifier I just purchased. ———— Love this humidifier. I live in CO where it is super dry especially during winter. I used a couple different ones but they always ended up with gunk/sediment in the bottom so I had to get rid of them. I know it’s better to use distilled water but I’m not paying for distilled water when I have to refill my humidifier every night. I didn’t use one last year and this year my nose and throat were so dry, I was getting nose bleeds and my throat hurt so bad I thought I was actually sick but decided to try a humidifier first to see if it would help. I liked this one because I could control it with my phone and it showed the humidity levels. After plugging it in it showed my rooms humidity level was 30% and having it on for 30 min my nose and throat felt so much better. I like how you can just pick up the tank from the bottom part, carry it to the sink then remove the lid and fill it up, really simple and easy. I also like that it has a filter (and options to buy more) because after a few refills I can see the filter start to change color so I feel like that’s helping keep gunk out from the bottom. I haven’t noticed any gunk/sediment and I’ve been using it continuously now for about two months but I also put “humidifier drops” in the water that I purchased on Amazon that supposedly helps stop buildup. Not sure if that is what’s helping. I also like the app. You can turn the humidifier on or off using the app, set a timer, put it on auto (which will turn off the humidifier at a certain humidity level) or set it on manual (where you choose how much moisture comes out). It also shows what the humidity level has been over time in the room you put the humidifier in and the humidifier itself shows on a little screen in front what the current humidity level is. There’s also a light inside the humidifier they call a “night light” you can turn on or off. All in all it’s a pretty neat humidifier. I guess it depends on how dry it is where you live because mine is set to shut off at 45% humidity and it rarely gets to that level so it’s basically on all the time except when I turn it off when I go out. So I usually have to refill it every night which is kind of a bummer but at least my nose/throat/skin isn’t so crazy dry anymore. I would definitely recommend this to anyone who wants a humidifier that they can control with their phone and is pretty easy to refill and use. App set up and pairing was super easy as well.
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Reviewed in the United States on January 10, 2024 by MissAlex