Customer reviews from dreo
DREO - Ultrasonic 40'' Tall Cool Mist Humidifier for Bedroom, 4L Water Tank, 36H Runtime, 3 Mist Settings, Smart Control - White
Average customer rating
4.8
(132 Reviews)
Rating breakdown 132 reviews
5 Stars
109
4 Stars
20
3 Stars
3
2 Stars
0
1 Star
0
Customer Reviews for DREO - Ultrasonic 40'' Tall Cool Mist Humidifier for Bedroom, 4L Water Tank, 36H Runtime, 3 Mist Settings, Smart Control - White
Customer Rating
5
Convenient and powerful humidifier.
on September 25, 2025
Posted by: bbmy_4936
[This review was collected as part of a promotion.] I received this product for free from Influenster in exchange for my honest opinion.
I recently tried the DREO Smart 4L Cool Mist Humidifier when my daughter was sick with a cold, and it made such a difference. The mist kept the air comfortable and eased her congestion at night, helping her sleep much better. I was impressed with how whisper-quiet it is—you can hardly notice it’s on, which is great when kids are resting. The 4L tank easily lasted through the night, and I loved being able to control the settings from the app on my phone. It’s clean, convenient, and truly effective. A must-have for families, especially during cold season!
Written by a customer while visiting dreo
Customer Rating
5
Everything a humidifier should be
on September 25, 2025
Posted by: kafeteriafood_8855
[This review was collected as part of a promotion.] This humidifier has a sleek design. It’s low maintenance and very durable. It has helped me during dry night or if I’m feeling congested. It’s quiet and I love that it has a nightlight feature.
Written by a customer while visiting dreo
Customer Rating
5
Highly recommend
on September 25, 2025
Posted by: annieng102_9059
[This review was collected as part of a promotion.] The machine is very quiet, easy to clean, easy to fill, has good water capacity and is easy to use. On high misting level the tank holds more than enough water to last the all day long. It is quiet and you can turn off the light while it’s working if you don’t like it. I placed it in my son’s room and sometimes he doesn’t like the room so bright when he’s sleeping. This is really an indispensable machine for my family in the dry season, especially winter. It’s 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. Recommend!
Written by a customer while visiting dreo
Customer Rating
5
It’s a well-designed, feature-rich humidifier that
on September 22, 2025
Posted by: stefim7_118
[This review was collected as part of a promotion.] Impressive Smart Humidifier — Great for Bedrooms & Daily Use
I've been using the Dreo Smart 4L Cool Mist Humidifier for a few weeks now, and overall, I’m really happy with the purchase.
What I Like:
Quiet operation: It’s whisper-quiet, even on higher mist settings. Perfect for sleeping.
Smart controls: The app and voice integration (with Alexa/Google Assistant) work smoothly. I can adjust humidity levels, set timers, and even schedule it — all from my phone.
Top-fill design: Super convenient to refill without making a mess.
Long runtime: I get more than a day on low to medium settings without needing to refill.
Adjustable mist: The nozzle tilts, which is a nice touch for directing mist where it’s needed.
I've been using the Dreo Smart 4L Cool Mist Humidifier for a few weeks now, and overall, I’m really happy with the purchase.
What I Like:
Quiet operation: It’s whisper-quiet, even on higher mist settings. Perfect for sleeping.
Smart controls: The app and voice integration (with Alexa/Google Assistant) work smoothly. I can adjust humidity levels, set timers, and even schedule it — all from my phone.
Top-fill design: Super convenient to refill without making a mess.
Long runtime: I get more than a day on low to medium settings without needing to refill.
Adjustable mist: The nozzle tilts, which is a nice touch for directing mist where it’s needed.
Written by a customer while visiting dreo
Customer Rating
5
Best humidifier I’ve ever owned!
on September 22, 2025
Posted by: thekeptwife_539
[This review was collected as part of a promotion.] I’ve been using the DREO HM420S Cool Mist Humidifier and it’s easily one of the best humidifiers I’ve owned. It combines thoughtful design with powerful performance and earns a solid 5 stars across the board.
⸻
Why I love it
1. Clean, comfortable mist with built-in demineralization filter
The integrated filter helps remove minerals from tap water, which means no annoying white dust settling on furniture or floors. It keeps the mist ultrafine (about 5 microns) and healthier for breathing. I love not having to stress as much about using only distilled water.
The integrated filter helps remove minerals from tap water, which means no annoying white dust settling on furniture or floors. It keeps the mist ultrafine (about 5 microns) and healthier for breathing. I love not having to stress as much about using only distilled water.
2. Long runtime & large capacity
The 4-liter tank lasts around 30–36 hours on lower settings, which means I don’t need to refill it every night. Perfect for sleeping through the night without worrying about dry air.
The 4-liter tank lasts around 30–36 hours on lower settings, which means I don’t need to refill it every night. Perfect for sleeping through the night without worrying about dry air.
3. Powerful coverage with elevated mist
It pushes mist up to 40 inches high, so the humidity spreads evenly through the room without puddling on surfaces. My bedroom (around 280–300 ft²) feels balanced and comfortable within half an hour.
It pushes mist up to 40 inches high, so the humidity spreads evenly through the room without puddling on surfaces. My bedroom (around 280–300 ft²) feels balanced and comfortable within half an hour.
4. Quiet and peaceful
At only 28 dB, this humidifier is whisper-quiet. I can sleep with it running and never hear a thing.
At only 28 dB, this humidifier is whisper-quiet. I can sleep with it running and never hear a thing.
5. Smart controls + extras
• Easy app pairing and voice control via Alexa/Google.
• Adjustable mist levels and timer settings.
• Built-in aroma pad tray for a touch of essential oil fragrance (subtle but refreshing).
• Top-fill design makes refills and cleaning so much easier.
• Gentle night-light option that adds a cozy glow.
• Easy app pairing and voice control via Alexa/Google.
• Adjustable mist levels and timer settings.
• Built-in aroma pad tray for a touch of essential oil fragrance (subtle but refreshing).
• Top-fill design makes refills and cleaning so much easier.
• Gentle night-light option that adds a cozy glow.
⸻
Small notes (not deal breakers)
• You’ll still want to clean it weekly and descale monthly — the filter helps but doesn’t eliminate all buildup.
• The aroma pad is subtle, so it’s not a replacement for a strong diffuser (which I actually prefer — less overpowering).
• Initial app pairing takes a couple of minutes, but once it’s connected, it works flawlessly.
• You’ll still want to clean it weekly and descale monthly — the filter helps but doesn’t eliminate all buildup.
• The aroma pad is subtle, so it’s not a replacement for a strong diffuser (which I actually prefer — less overpowering).
• Initial app pairing takes a couple of minutes, but once it’s connected, it works flawlessly.
⸻
Final verdict
The DREO HM420S feels like a premium humidifier without the premium price tag. Between the demineralization filter, long runtime, quiet operation, and smart features, it has made a huge difference in my home’s air quality.
I wake up without dry throat or itchy skin, my plants are thriving, and there’s zero white dust on my furniture. If you’re looking for a smart, reliable, and low-maintenance humidifier for medium-sized rooms, this one is a must-buy. 🌟
Written by a customer while visiting dreo
Customer Rating
5
Like
on September 19, 2025
Posted by: ortiz1986_8340
[This review was collected as part of a promotion.] Very good quality, I loved its color. The size is excellent, not too big, not too small. Its capacity is enough for my room. It effectively fulfills its purpose and keeps the room cool. It's not too loud.
Written by a customer while visiting dreo
Customer Rating
5
Take your humidifier experience to the next level!
on September 18, 2025
Posted by: aimster2_4631
[This review was collected as part of a promotion.] DREO Cool Mist Humidifier offers a whisper quiet steady stream of mist to help humidify your home during the drier months of the year. Smart technology allows you to control all aspects of your humidifier from an app on your phone including mist and humidity levels as well as timer and schedule functions. Set the humidifier to auto option and the humidifier will automatically adjust the mist flow to preset humidity level. Once connected to the DREO app you can control with voice commands through Alexa, Siri, or Goggle Assistant (see video). Other features include an aromatherapy option and a demineralization cartridge to prevent mineral build keeping your humidifier running efficiently.
Written by a customer while visiting dreo
Customer Rating
5
Makes no noise
on September 18, 2025
Posted by: selinam42_9327
[This review was collected as part of a promotion.] The designis nice it gives led vibes the durability is long and just perfect the effectiveness is how it's supposed to be the maintenance is super easy and fast the noise level is great u can't even tell it's there
Written by a customer while visiting dreo