Dreo Humidifiers for Bedroom, 4L Top Fill for Large Room, 36H Runtime, 28 dB Quiet Supersized Cool Mist Air Humidifier for Baby Nursery, Plants, Indoor, Night Light, Easy to Clean & Fill, Blue
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Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 3 left in stock, order soon!
Arrives
Dec 9 – Dec 10
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Color: Blue
Features
- 4L Large Tank for Continuous Comfort: Enjoy quiet sleep without congestion, coughing, or dry mouth, Dreo's ultrasonic atomization brings noise down to 28dB, while its 4L tank provides up to 36 hours of moisture without the need to refill.
- Next-Gen Humidification Performance: Powered by Dreo's Dual-intake and 4-inch mist outlet design, this humidifier creates a supersized mist of up to 40 inches tall for humidifying bedrooms, while bringing faster dry air relief to help you breathe easy and healthy.
- Bring Freshness All-around: Thanks to its high-frequency atomization process, this humidifier for large room releases 5m Ultrafine mist and lighter mist particles, allowing humidity to spread evenly across the room without wetting surfaces.
- Easy Top Fill Design: This baby humidifier allows you to fill up without having to flip the tank or spill water on the floor. Its modular design is easy to remove and install, giving you a hassle-free cleaning experience.
- 3-in-1 Humidifier: Dreo cool mist humidifiers are perfect companions for a healthier life, from helping you breathe easier, to making your own aromatherapy sessions, to changing the mood of your room with its ambient light (essential oils not included).
Brand: Dreo
Special Feature: 28dB Ultra-Quiet Operation, Adjustable Humidity Control, Aroma Diffuser, Easy Top-Fill, Night Light
Color: Blue
Floor Area: 300 Square Feet
Operation Mode: Ultrasonic
Brand: Dreo
Special Feature: 28dB Ultra-Quiet Operation, Adjustable Humidity Control, Aroma Diffuser, Easy Top-Fill, Night Light
Color: Blue
Floor Area: 300 Square Feet
Operation Mode: Ultrasonic
Product Dimensions: 5.51"D x 11.02"W x 10.16"H
Item Weight: 3.12 Pounds
Room Type: Bedroom, Kids Room, Living Room, Nursery, Office
Model Name: HM311
Included Components: Aroma Pad, Cleaning Brush, Cleaning Guide*1, Humidifier*1, User Manual
Voltage: 120 Volts
Wattage: 26 Watt-hours
Shape: Oval
UPC: 810142852647
Unit Count: 1.0 Count
Manufacturer: Dreo
Manufacture Year: 2023
Item Weight: 3.12 pounds
Item model number: DR-HHM001
Perfume: No scent
Batteries required: No
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Dec 9 – Dec 10
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
Color: White
I bought distilled water at target for this humidifier and it's been keeping the parts clean with zero molds or discolorations. I owned different humidifiers and honestly it's hard to clean them as not all parts are detachable for cleaning. I have been using this for over a year and it's still working great. Decent size for a master bedroom. There're several settings for mist and light. The night setting is great with very subtle sound ( you have to listen very carefully to be able to hear it). An awesome touch for cold seasons.
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Reviewed in the United States on October 29, 2025 by Amazon Customer
Color: White
Works great. Looks nice and sleek. Not a huge footprint so it doesn’t take up too much Counter space. Holds lots of water def won’t run out in the middle of the night even on high. Helped out sleeping so our throats don’t dry out. Sound is good a little noise depending on the setting but almost nothing honestly. So far so durable. Great buy especially for the price.
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Reviewed in the United States on November 22, 2025 by Star
Color: Blue
Easy to use, easy to clean, quiet and doubles as a night light! I absolutely love it. Helps me not cough so much at night from the dry mouth/throat. Sleep quality has improved with use of the humidifier! The most output has three settings too, and the size is good for my bedside table. All in all a good purchase! 10/10! 👍👍👍
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Reviewed in the United States on November 21, 2025 by CWilmot CWilmot
Color: Black
Works well, quiet and easy to use. Not bright for babies room while she sleeps.
Reviewed in the United States on November 12, 2025 by Beth Fuller
Color: White
Two thumbs up for use in a senior living facility. It's quite easy to set up and use, holds sufficient water (use distilled water!) to not need constant refills, and yet is of a size that doesn't overwhelm a senior living apartment. It works quite well and is sufficiently quiet to not annoy the resident while reading or watching TV. Nice equipment to help seniors avoid the nose bleeds and itchy skin that's brought about by typically dry environments.
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Reviewed in the United States on November 9, 2025 by Amazon Customer
Color: Black
The media could not be loaded. Some helpful hints I found have helped to keep this humidifier working. First, make sure the tape and Styrofoam block are removed from the product. Second, when filling the tank, make sure that room temp water is added, especially the for the first time. Hot water may damage the seal. Third, do not fill water above the MAX level. The extra weight may cause leaks in the seal. Fourth, all small humidifiers like this will get bacteria/mold if not cleaned every 2-3 days. It is the nature of having water heating up for days without cleaning. If you don't like cleaning it every three days, understand that there will be mold/bacteria inside the base's small tank. It's just that simple. Cleaning is easy, but it takes some time to thoroughly clean the unit. ... and fifth, make sure NO water gets in the part that looks like a tower on the base's smaller tank. A small amount will flood the air intake and the electronics' board. This will mess up the controls. If it does happen, use a blow dryer on low to try and dry the board at the base of the unit. Otherwise, a couple of days should dry it out. If it isn't severely flooded, it may still work. Also, NEVER put anything but water in the tank when in use. Vicks, scented oils, or anything else will wreck this humidifier. The only thing I use in the tank is white vinegar to clean and descale it, but after that kind of cleaning, I rinse it out thoroughly and then dry it completely. Keep in mind, tap water is not the best water to use (lots of minerals) which is why white dust from this humidifier can go everywhere in the home and stick to the inside areas of the humidifier. Best to use distilled water or at least buy a demineralizing cartridge if using tap water (they last 4-6 months). Hope these helpful hint work for your humidifier. Took a lot of trial and error beforehand, but once I used this information, there hasn't been an issue yet with my Dreo humidifier or any of my previous humidifiers. Best of luck UPDATE: I started to have some issues with dust just like what others have be experiencing. I contacted Dreo by email and customer rep, Carol Hesung, was able to help resolve the problem. While suggesting that distilled water is the best way to combat the dust, I mentioned it wouldn't work out for me due to the high cost of distilled water per month. Carol understood and offered a complete refund for this unit and for the larger unit I purchased. Not only that, the demineralizing cartridge filter (3-pack) I bought was also refunded. Carol said there was no need to return any of these products. Not only was I pleasantly surprised with this outcome, it proved to me that Dreo is all about making it right for the customer if problems arise. With the actions Dreo has made, I will definitely recommend them and make future purchases from this company. Their customer service has been stellar and I wish other businesses would follow their lead. The Dreo team puts customers first and that is one of their best services offered. Thank you Dreo and thank you Carol. I was able to set the Dreo up quickly and finally get some moister back into my room. So far, this is product is working very well. It is super quiet, compact and easy to take apart, clean and put back together. There are many easily operated controls for such a small unit. 4L is quite small for my living room, but for a small bedroom, this will do the trick. I am pleased with the looks, the style, the easy operation, the light system, but most of all the steam output and the way you can direct the steam is an added bonus. If this can last as long as my old humidifier of 9 years, then I will be that loyal customer only to Dreo for sure. It really is a good humidifier even for its smaller footprint. Definitely recommend.
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Reviewed in the United States on January 27, 2025 by L. Kozak L. Kozak
Color: White
I was surprised at how well this humidifier works. It spews out a wide stream of fine mist even on the low setting. It’s very well-made, easy to fill, easy to take apart and clean - although I’ve only had mine for about a week or so - so no cleaning as yet needed. It’s very stylish! one thing that you should know is it’s recommended to set the humidifier about 2 feet above the floor and a foot from a wall I think that’s to both avoid condensation on surfaces and to optimize the dispersal in a room. I put my unit on a metal chair in a niche of the bedroom and it really works well. it’s a great product for the money. I don’t think it can be beat.
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Reviewed in the United States on November 16, 2025 by joe
Color: Black
This humidifier has been a fantastic addition to my space. The build quality is solid, with a sleek design that feels durable and well-made. It runs quietly and efficiently, delivering a steady mist that really helps maintain comfortable humidity levels. For the price, it’s an outstanding value. It has three modes, nightlight, and is easy to fill and use. You get reliable performance, easy setup, and features that rival more expensive models. I’ve noticed a big difference in air quality and comfort since using it. Highly recommend if you’re looking for a dependable, budget-friendly humidifier that actually delive
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Reviewed in the United States on October 15, 2025 by Dan H