

💨 Elevate your air game—breathe better, live better, every day.
The Dreo 4L Cool Mist Humidifier combines a supersized water tank with whisper-quiet ultrasonic technology to deliver up to 36 hours of ultrafine mist at just 28 dB. Its innovative dual-intake and tall mist outlet ensure rapid, even humidification for rooms up to 300 sq ft. Designed for modern lifestyles, it features a spill-free top-fill tank, easy cleaning, and a soothing night light with aroma diffusion capabilities—perfect for nurseries, bedrooms, and workspaces seeking healthier air and a calming atmosphere.

















| ASIN | B0CNRC4G2C |
| Batteries required | No |
| Best Sellers Rank | #117 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #3 in Humidifiers |
| Brand | Dreo |
| Color | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (14,808) |
| Floor Area | 300 Square Feet |
| Included Components | Aroma Pad, Cleaning Brush, Cleaning Guide*1, Humidifier*1, User Manual |
| Item Weight | 3.12 pounds |
| Item model number | DR-HHM001 |
| Manufacturer | DREO |
| Model Name | HM311 |
| Operation Mode | Ultrasonic |
| Product Dimensions | 5.51"D x 11.02"W x 10.16"H |
| Room Type | Bedroom, Kids Room, Living Room, Nursery, Office |
| Shape | Oval |
| Special Feature | 28dB Ultra-Quiet Operation, Adjustable Humidity Control, Aroma Diffuser, Easy Top-Fill, Night Light |
| UPC | 810142854382 |
| Unit Count | 1.0 Count |
| Voltage | 120 Volts |
| Wattage | 26 Watt-hours |
S**N
Great humidifier
Super quiet, Works as intended. Love the blue light option. Perfect for cold days when you are running your heater and air gets dry. Easy to use. Large water capacity. Would have been great if the flat touch buttons were more articulate and lit up when the machine is turned on, as they are hard to detect when it's dark.
B**Y
Perfect - effective, quiet, auto shutoff
Works great, easy to use. I bought a second one and the two of them handle my kitchen/dining/living area. They are quiet and effective. A gallon of water covers most of the day. I used distilled water to keep them free of lime scale. Raising the humidity helps the house feel warmer. These are great
M**S
Get it!
Works very well. First night I left it on the high setting, I woke up in a cloud. I’ve had it for a few months now for my toddler’s nose bleeds in dry air. Haven’t had one whenever this is on. Overnight, low setting works great! During the day I will put it on medium or high if my humidity gets less than 20%. Also, you have to use distilled water or you will get mineral build up. Its easy to take apart & clean, but why do all that scrubbing if you can use the correct water? Water capacity holds all night on low or medium with a full tank. Easy to set up and use. Comes with a nice light for night time. Worth the buy!
M**Y
Nice humidifier
Great little humidifier, puts out a good stream of mist. It is easy to clean as the entire top comes off for filling snd cleaning. It dies not come with a demineralization cartridge, I had to purchase that separately. Would have liked to see one included. Has a night light if you like that. It is very quiet, does not gurgle. Tank of water will last about 18-20 hrs depending on how high you set the misting.
D**R
Good quality and works well so far!
I am loving this humidifier! So glad I got it. It works well, is quiet and I love the teal backlight. I could turn the light off at night since I like it dark to sleep, but it hasn't been bothering me at all. It puts out a nice mist. I've been running it on high as it has been very dry here so it doesn't last anywhere near 36 hours. That's probably on the lowest setting. I don't mind filling it back up more often since it helps so much.
E**A
Love, love, love this!
I ordered this because I have a 5 year old daughter that seems to always be sick. She catches every cold, virus, really any sickness that goes around. We got it because we were hoping it would help with her constant stuffy noses and sore throats. And it has helped a lot! She doesn’t complain when she wakes up in the morning anymore about her throat being dry or hurting. Her nasal congestion has drastically reduced. She even seems to be getting over illnesses quicker. We have a smallish room, not majorly small but not big either. We can use it on level 2 or 3 and it works great. It’s easy to turn on and adjust. And there’s even a tray you can add essential oils into! It does hold a whole gallon of water, maybe even a little more, and depending on what setting you use will determine how often you have to fill it. If we use it on setting 2, it will last us 2-3 nights of continuous running through the night as we only use it when we sleep. If we use it on the 3rd setting, we get 1 night of use before we have to refill it. It does have an auto shut-off function and will shut off once the water level gets too low. It’s relatively easy to clean and comes with cleaning instructions and a brush to clean it with. My child is also getting her tonsils removed next month, and we believe this will help a lot with her recovery from that as well as it will help keep her throat from drying out. All in all I’m very happy with this purchase and will purchase another one should this one ever quit working. We’ve had it for a little over a month now and so far it’s still going strong.
Z**Z
Helps me breathe again
I got this machine to humidify a long house. Well, that house is too big for this machine to humidify the entire thing. However, I found that if I put the machine on my end where I sit, then it's very effective. I use this in winter to fight the dry air. I put it in the middle of my indoor plants, near my desk. So now, both I and my plants can benefit from it. It sends a nice column of mist about 2 feet in the air, and the top guide can be tilted, so you can direct the mist in 1 of 3 directions. My plants like it, and I can breathe again! A full tank at max humidity runs for maybe 10-12 hours. I'm not sure - I just know that I've gone to bed, woken up, and seen it still going. It makes no noise that I can hear. The design seems a little bulky and unwieldy at first, but I've come to appreciate it. When you fill it up and carry it, walk slowly, or else just bring a pitcher of water to the machine. If you do that, you'll have no spills or problems. Overall, I'm glad I got the machine and it helps a lot on the dry air winter days.
G**Y
I’ve been using this Dreo 4L Top Fill Humidifier for a little over a month now, and it has quickly become one of my favourite home gadgets. What I love: • Super Easy Refill & Cleaning: The top-fill design is a game changer. No more struggling to flip over a tank without spilling water. Cleaning takes just a couple of minutes. • Quiet Operation: At night it’s whisper-quiet (around 28 dB), so I can sleep peacefully without the constant humming that most humidifiers make. Perfect for light sleepers and babies. • Long Runtime: A full tank easily lasts through the night and beyond. On the lowest setting, I get well over a day of mist without needing a refill. • Night Light: The soft glow is calming and works perfectly as a nursery light. • Healthy Mist Output: Within the first week I noticed my skin felt better, my throat wasn’t dry in the mornings, and even my indoor plants looked healthier. One small issue: Since there’s no built-in filter, I did notice that tiny flies can sometimes get into the water tank if left uncovered. It’s not a big problem, but I recommend always keeping the lid closed. ✅ After a full month of daily use, I can say this humidifier is quiet, easy to use, long-lasting, and really improves room comfort. Highly recommend for bedrooms, nurseries, or even larger rooms. 👉 Helpful tip: Use filtered water for longer life and cleaner mist!
L**É
Great humidifier, good format for a slim bench (window bench in our case). Quiet operation, can barely hear it when on lowest level. Needs regular cleaning like all humidifiers, however this model is easier to disassemble and clean compared to other ones we’ve had. Be careful to not pour water into the steam outlet of the bottom part - that’s how I ruined our first one…
D**5
Ohne wenn und aber. Das Gerät verdient einen super, ein Dankeschön, ein hervorragend! Super leise, kaum zu hören, Luftbefeuchtung und die Nutzung von ätherischen Ölen funktionieren einwandfrei. Super leicht zu bedienen, fantastisches Preis-Leistungs-Verhältnis in diesem Fall!
J**L
Its working well
I**É
Je l adore . J utilise de l eau déminéralisée pour ne pas abîmer le plastique . On sait régler l orientation au dessus pour l envoie de l humidité dans la direction souhaitée . L appareil ne fait aucun bruit . On peut le mettre en mode nuit : il n y a pas de bruit qui nous empêcherait de dormir ! Je le recommande. J ai trouvé derrière l appareil : un compartiment où on peut mettre qq goutte d huile essentielle dedans ( voir photo ) : comme ça on ne doit pas mettre l huile directement en contact avec l eau . La diffusion de l huile se fait sentir malgré tout . Il y a 2 autres tampons de remplacement dans la boîte pour d autres odeurs et une petite brosse pour le nettoyage de l appareil. Cette appareil est top et m a permit de moins tousser quand j avais la gorge très sèche . Je vous le recommande vivement
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