

💨 Elevate your air game — breathe smarter, live better.
The Dreo Smart Humidifier is a 4L top-fill ultrasonic device designed for bedrooms and large rooms up to 300 sq ft. It features ultra-quiet 28dB operation, 36 hours of continuous runtime, and smart controls via app, touch, or voice (Alexa/Google). Its advanced humidity sensors and dual-intake system deliver precise, supersized mist for rapid dry air relief. With safety auto shut-off and customizable ambient lighting, it’s perfect for nurseries, plants, and professional spaces seeking optimal air comfort.

















| ASIN | B0DFHLGJ3C |
| Best Sellers Rank | #174 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #4 in Humidifiers |
| Brand | Dreo |
| Brand Name | Dreo |
| Capacity | 4 Liters |
| Color | Gray |
| Control Method | App, Touch, Voice |
| Customer Reviews | 4.4 out of 5 stars 9,235 Reviews |
| Filter Type | Filterless |
| Floor Area | 300 Square Feet |
| Included Components | User Manual, Aroma Pad x 2, Cleaning Brush, Humidifier Body |
| Item Dimensions D x W x H | 11.02"D x 10.16"W x 5.51"H |
| Item Shape | Oval |
| Item Type Name | Humidifiers |
| Item Weight | 3.12 Pounds |
| Manufacture Year | 2024 |
| Manufacturer | DREO |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Model Name | HM311S |
| Model Number | DR-HHM001 Gray |
| Operation Mode | Automatic |
| Other Special Features of the Product | 4L Top Fill Ultrasonic Humidifiers for Bedroom, Digital Display, Timer, Wifi/APP/Voice Control, Work with Alexa/Google Assistant |
| Power Source | Corded Electric |
| Room Type | Bedroom, Living Room, Nursery, Office, Study Room |
| Runtime | 36 hours |
| UPC | 810142852548 |
| Voltage | 120 Volts |
| Wattage | 26 watts |
S**H
Great humidifier
I bought these to use for my house plants. I love that I can set a humidity percentage through the app and the humidifier will maintain that humidity level. If the humidifier runs out of water it automatically shuts off and sends you a notification through the app. This unit is silent as far as I am concerned, the mist is very fine and is working well for my plants. I like that the unobtrusive lights in it (which can be turned off) let's me know if my current humidity near the humidifier is in its target range (green) or if it's dry (below target humidity, yellow/orange) or wet (above target humidity, blue). You can use the app to turn the device on/off and to adjust the humidity, this is also where you control whether the humidity indicator light is on or off. I recommend it highly, I am considering getting the size up to be able to cover more of my room space. This unit holds a full gallon of distilled water when filled from totally empty, if filling from auto-shutoff it will take slightly less than a gallon. They manufacturer recommends using distilled water to avoid lime scale as do I. We have very hard well water and uso g distilled has saved us from having to descale.
D**E
Excellent. Buy this.
I have a Dreo wall hanging heater that I love so I thought I'd try this. It uses the same app and is easy to set up. I am ecstatic with this product. Extremely quiet and pumps out water vapor. Having the humidity level setting on a product at this price point is amazing. The ambient lighting feature doesn't provide any value to me and seems to be a silly feature. Definitely the right size for a traditional bedroom for non McMansion houses. A little undersized for a normal living/family room. I have soft water so do not get calcium build up. There are no complicated filters although you can buy a filter to add on from Dreo. Cleaning is simple. I love that there aren't consumables that cost money constantly. Extremely satisfied with this product.
D**D
Good unit, good company
This is a cool machine. The app works well and is easy to use. It is a quiet unit and will kick out the moisture if you set it on high. We have set the unit on high humidity and had the entire house look smokey. We bought a second unit because we liked the first so well. It's light to refill and last a few days depending on the moisture output. On a separate note. I can speak on the DREO brand and people that work there as well. We had a slight problem with one unit and they replaced the unit with very little difficulty. If you want a quality humidifier, here it is. I'm not a paid actor just a user with a humidity controlled house.
A**R
Great! Read before you return it
Works great! But after I cleaned it, it stop working but come to find out, the spring and pin popped out. I put everything back in its place and now it works great again.
B**9
AMAZING - ish!
I know I shouldn't get this excited over a humidifier, but this thing is amazing!! It's so easy to set up and sync with my phone and Alexa. The top fill option is great and for something that looks so compact it holds a lot more water than you'd think. And the best part for me is the way you can set it to EXACTLY the level of humidity you want in your room/home and walk away. It tracks the humidity in your air and shuts itself off when it reaches the level you want, so a single fill can last for days. Then starts back up again when it drops below optimal. And of course it shuts off and notifies you when it has run dry. It even tells you when it's time to switch out the filter. You can control of this from anywhere with your phone or by voice using Alexa. I will recommend this to everyone. **UPDATE** Still love the functionality of this humidifier, but the filter that is supposed to eliminate the white dust is a bit of a disappointment. After several days of use EVERYTHING is covered with a layer of super fine dust. Plan to dust often.
N**E
Absolutely LOVE it
This humidifier works very well. I like how I can adjust the humidity and that it’s controlled by my Alexa. Shuts off once it’s empty. Has a nice little glow Light which can also be turned off with the app. Helped me tremendously throughout my pregnancy with severe congestion. It’s so quiet so it doesn’t bother you one bit. And it’s easy to fill the bucket which is able to come off completely. It’s a good size for a large room. The best part is that you can detach all the pieces and clean it thoroughly unlike others. The app even has a cleaning reminder recommended 100 hours but depends on your use, I clean it more frequently and you can set it to your liking. Has a separate spot to add essential oils as it is not recommended to add into the bowl itself. Really do love this product and recommend to anyone. I hardly give 5 stars but this product deserves it.
L**R
Love IT!
This is a great humidifier! I loved it so much I got another for another room. No smell, very quiet, easy to use and connecting to the app makes it a breeze. I love all of the settings to make sure things are set to our comfort. It is so easy to set up, fill, and get going. The longest part of set up was just downloading the app.
D**D
Beautiful Design, Works Exactly as Intended
I originally bought this humidifier as an addition for another room to help my plants, not to replace my main one—but I ended up loving it. The water feature is almost like a rain system, with water gently trickling up the center, which is a really nice touch. The ambient lighting adds to the overall aesthetic, and it humidifies very well. The app is functional and easy to use, and scheduling on/off times works exactly as intended. Overall, it’s both effective and visually appealing.
Trustpilot
3 weeks ago
1 month ago