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Dreo 3L Top Fill Humidifier for Bedroom

Curated from 119 real Reddit conversations

Refreshed on: March 7, 2025

Dreo 3L Top Fill Humidifier for Bedroom

Brand: Dreo

Price: $33

Snoop Score:

4.5

Sentiment

5.0

Popularity

3.3

Technical

4.6

Buy on Amazon for $33 See All Humidifiers Reviews

As an Amazon Associate, I earn from qualifying purchases.

Snoop's Take

The Dreo 3L Top Fill Humidifier is designed to enhance indoor air quality by maintaining optimal humidity levels, making it ideal for bedrooms, nurseries, and large rooms. With a generous 3L tank and a quiet operation at just 26dB, this ultrasonic humidifier provides a comfortable environment by alleviating dry skin and preventing mold growth. Users have expressed satisfaction with its performance, stating, "It’s the best humidifier we have ever had when it comes to cleanliness and mold," although some have raised concerns about potential health effects and noise levels. Overall, while it excels in maintaining humidity and cleanliness, prospective buyers should consider its drawbacks before purchase.

Not for you? Check out our other rated Humidifiers

It’s the best humidifier we have ever had when it comes to cleanliness and mold.
Positive Feedback

It’s just too loud, the fan is a cheap fan so if you like the white noise for the fan then get it otherwise save yourself the headache.
Negative Feedback

4.5

Dreo 3L Top Fill Humidifier for Bedroom

Buy on Amazon for $33

Terrarium Environments

6 / 10

Home and Nursery

6 / 10

Large Room Humidification

8 / 10

Health and Comfort

9 / 10

See how this compares to all Humidifiers

What it does well!

Key strengths users can’t stop talking about.

Effective cleaning and mold prevention

“It’s the best humidifier we have ever had when it comes to cleanliness and mold.”➕

Good performance in large rooms

“I absolutely love my large room humidifier. Works well and the essential oils smell so good.”➕

Helps alleviate dry skin

“A humidifier in my room helps my suPER dry skin keep from being a complete flake-fest when I wake up in the morning.”➕

Where it needs some work!

Areas to watch—feedback on possible improvements.

Loud operation compared to other brands

“It’s just too loud, the fan is a cheap fan so if you like the white noise for the fan then get it otherwise save yourself the headache.”➕

Negative health effects after use

“I would advise against it. I actually had a sore throat the entire day after sleeping with the humidifier turned on for just one night.”➕

Ultrasonic humidifiers can negatively impact air quality

“It's not water particles, it's the bad particles. Ultrasonic humidifiers are horrible for air quality.”➕

“I’m picturing Fallout levels in here and gas masks.”➕

“I have the position that this may have the potential to be harmful to lungs.”➕

“Is it possible my humidifier is putting brat crap in the air?”➕

Risk of mold causing health issues if not cleaned

“CLEAN YOUR HUMIDIFIER!!!!!”➕

Ineffective at raising humidity levels

“I run a humidifier every night and I still can't seem to get the humidity above 35%. My skin hates this.”➕

Compare On All Talked About Dimensions

Product Name	Price	Score	See Details	Buy Now
LEVOIT OasisMist 1000S Smart Humidifier	$149	8.3	Details	Buy
LEVOIT Top Fill Humidifier for Bedroom	$39	8.0	Details	Buy
LEVOIT Superior 6000S Smart Evaporative Humidifier	$249	8.0	Details	Buy
BREEZOME 6L Humidifier and Essential Oil Diffuser	$39	7.6	Details	Buy
Everlasting Comfort Cool Mist Humidifier for Bedroom	$77	7.5	Details	Buy
Zatrua Dual Spray Large Capacity 5L Humidifier	$14	7.3	Details	Buy
CHIVALZ 6L Humidifier for Bedroom and Large Rooms	$37	6.9	Details	Buy
Pharata Humidifiers for Bedroom Large Room	$24	6.8	Details	Buy
Dreo Humidifiers for Bedroom	$39	6.7	Details	Buy
MEGAWISE MegaWise Topfill 7-colour Night Light Humidifier	$20	6.7	Details	Buy
Vicks Warm Steam Vaporizer	$17	6.6	Details	Buy
Peach Street Cool Mist Humidifier for Bedroom	$27	5.3	Details	Buy
AquaOasis Cool Mist Humidifier	$29	4.9	Details	Buy
Vicks Filter-Free Ultrasonic Humidifier	$62	4.7	Details	Buy
Dreo 3L Top Fill Humidifier for Bedroom	$33	4.5	Details	Buy
MOVTIP Portable Mini Humidifier	$15	4.2	Details	Buy
Saunana Portable Mini Humidifier	$7	4.0	Details	Buy
KOSGHO Portable Small Humidifier	$9	3.6	Details	Buy
Coolfiqu 6L Humidifier for Bedroom and Large Room	$39	2.8	Details	Buy
raydrop Cool Mist Humidifier for Home and Babies	$25	2.6	Details	Buy
MEGAWISE Ultrasonic Cool Mist Humidifier SK7620	$18	2.2	Details	Buy
ROSEKM Humidifiers for Bedroom (1.1L)	$20	1.7	Details	Buy

Core Power Plays

The specs and strengths that make it shine.

Mention of alternative humidifiers and their benefits

“This is a pricey option, but a Venta Airwasher solved my, similar, humidifier problems.”➕

“I got the Carepod after several failed attempts at removing mold from an inaccessible area in my previous humidifier.”➕

“Get a whole house humidifier is my tip.”➕

Discussion on recommended humidifier features and brands

“Best Humidifier Recommendations: Top Models for Bedrooms, Babies, Plants, and Large Spaces Welcome t”➕

“This is an awesome roundup! 🎉 I’ve been considering the LEVOIT Smart Humidifier for my living room because of its smart features and large coverage area.”➕

“Levoit humidifiers are excellent. I have the 600 warm/cold combo unit and it is great.”➕

Buyer’s Cheat Sheet

What to check before you click ‘Add to Cart.’

Seeking reliable humidifier options

“I want to be smarter this year and get something that's worth my money, even if it is more expensive.”➕

“Any trouble with cleaning the unit?”➕

“Thinking about getting a humidifier to add some moisture to the air.”➕

“I need a better humidifier!”➕

Discussion on using distilled water vs tap water

“Before I learned not use tap and only use distilled my humidifiers were much grimier, also you won't run the risk of ecoli.”➕

“well, if babies can drink it (again, check the baby food section and you'll see lots of distilled water), I'm sure you'll be fine.”➕

“Better include distilled water in that budget.”➕

“Using distilled water in humidifiers should be standard practice if you have hard water (like me) and want to maintain good air quality.”➕

Cleaning tips for preventing mold in humidifiers

“Distilled water is best for humidifiers, but also, try cleaning it with hydrogen peroxide.”➕

“Yeah distilled water. Also recommend ultrasonic type humidifier without a wick or filter.”➕

“So how does water that is a perfect breeding ground for bacteria and mold somehow make a humidifier less susceptible to those issues?”➕

“I just keep it clean and use clean or distilled water.”➕

Discussion on cleaning and maintaining humidifiers

“Cleaning and Sanitizing a Humidifier Hello, I forgot to empty out the water in the base and container of my plastic cool-mist humidifier, and now it's got a slimy coating in it.”➕

“always best to follow the cleaning directions of your model. The key, whatever the type, is to clean”➕

“Behind a [paywall article](https://www.telegraph.co.uk/news/2020/07/28/14000-people-may-have-killed-”➕

“Ahhh I see! So you don't exactly run the humidifier with the vinegar water ratio? Probably a dumb qu”➕

General concerns about mineral deposits and scum in humidifiers

“Depends on where you live. I guess that’s caused by iron.”➕

“There are add in filters which put minerals back into the water.”➕

Concerns about cleaning and maintenance of humidifiers

“I've been through multiple ultrasonic humidifiers that work fine but maintenance is a nightmare.”➕

“What's the antimicrobial you use? I've got a new evaporative and the filter keeps getting moldy.”➕

“The concentrate has a bit of a disinfectant odor but I only notice it during refilling.”➕

“Nothing in the world irritates me more than humidifier cleaning.”➕

Mention of using distilled water for humidifiers

“Distilled water has no bacteria as everything is boiled out of the water?”➕

“It's critically more important if one is immunocompromised.”➕

Discussion on ease of cleaning humidifiers

“Humidifiers that are easy to clean? I’ve noticed on the humidifiers I have in both of my daughter’s room there are multiple nooks and crannies that truly cannot be cleaned.”➕

“Miro has changed that for me. I will never have any other humidifier.”➕

“It’s so much easier to clean than what I’ve used before.”➕

“It's expensive, but all of the parts that touch water are dishwasher safe.”➕

Discussion on ease of cleaning between humidifier types

“I find it's SOOOO much easier to clean. The warm mist humidifiers are a nightmare.”➕

Mention of using humidifier bactericide for cleanliness

“Use humidifier bacteriacide. You dilute it directly in the tank water and it prevents microbial growth.”➕

Discussion on using distilled water with ultrasonic humidifiers

“You should be using distilled water with ultrasonic humidifiers.”➕

Cautionary Callouts

Know the pitfalls before they catch you off guard.

Mention of a historical case related to humidifiers

“around 14 thousand people died from a humidifier cleaning disinfectant in South Korea…”➕

“I wonder how many kids got sick from outside their home.”➕

Discussion on bacteria build-up in ultrasonic humidifiers

“Ultrasonic / Cold-mist can also cause cancer if you aren't using distilled water in them.”➕

“Every ultrasonic humidifier I've seen uses a water tank and some sort of base unit that the water drains into.”➕

“Uhhhh. "High Frequency Vibrations" don't kill bacteria.”➕

“Ultrasonic humidifiers DO NOT kill bacteria.”➕

General discussion on types of humidifiers

“I can't believe you only needed to change filters twice in a season.”➕

“Brands for these hardly matter since all that is involved is a water capacity, a fan, and a wick.”➕

“Our well water has lots of minerals.”➕

Concerns about mineral deposits and their effects

“I also find evidence that ultrasonic humidifiers increase the bacterial levels indoors.”➕

“Do you find your electric bill sky rockets with that humidifier?”➕

Discussion on the effects of using tap water in humidifiers

“You can either buy a different kind of humidifier or distill your water before using the ultrasonic humidifier.”➕

“Non-distilled water was significantly worse than distilled water, so it definitely isn't the water molecules.”➕

“These inexpensive air quality monitors tend to read higher concentrations at higher humidities.”➕

“I guess this makes me question all the people out there running ultrasonic humidifiers with far worse tap water quality.”➕

Concerns about PM sensor readings with humidifiers

“Most PM sensors are laser scattering based PM sensors will detect water vapor, etc as particulate matter causing higher PM numbers when a humidifier is running.”➕