How noisy is the Dreo 774S?

Noise is a common complaint; the fan is audible even on low and may disturb sleep if used in a bedroom.

The washable filter and modular design help, but the heavy tank and deep crevices make manual cleaning awkward.

DREO

DREO HHM774S Smart Evaporative Humidifier 10L (Black)

4.8/5 (44)

$111.99$159.99-30%

In Stock

Brand new item that may show light cosmetic imperfections like minor scuffs due to handling or storage. Fully functional. Box may be damaged or may not ship in original box. Enjoy cleaner, more comfortable air throughout your home with the DREO HHM774S Smart Evaporative Humidifier 10L (Black). Designed for large spaces, this powerful humidifier delivers consistent, mist-free moisture to improve air quality without leaving residue on surfaces. With smart controls, precise humidity settings, and a large-capacity tank, it provides long-lasting performance with minimal maintenance. Ideal for bedrooms, living areas, or whole-house use, it combines convenience, efficiency, and modern technology for everyday comfort.. WHOLE-HOUSE COVERAGE: Effectively humidifies spaces up to 1000 sq ft with fast and even moisture distribution. MIST-FREE OPERATION: Evaporative system prevents white dust and keeps surfaces dry and clean. PRECISE HUMIDITY CONTROL: Built-in sensor with accurate adjustments and multiple modes for personalized comfort. LARGE 10L CAPACITY: Provides up to 50 hours of continuous operation for less frequent refills. SMART APP & VOICE CONTROL: Easily manage settings via the DREO app, Alexa, or Google Assistant. WASHABLE FILTER SYSTEM: Reusable filter helps maintain freshness while reducing maintenance costs. SCALE REDUCTION TECHNOLOGY: Helps minimize limescale and improves overall air quality.

Color: White Water Filter
Category: Home & Garden > Household Appliances > Climate Control Appliances > Humidifiers

View on merchant site JSON

GTIN: 810142857819
MPN: DREO-810142857819-FLOORMODEL

Specifications

Evaporative mist-free smart humidifier with a 10L water tank, up to 50H runtime and 800ml/h max output; ultra-fine vapor, precise auto humidity control, and smart voice & app control.

Evaporative mist-free humidification; 10L water tank; up to 50H max runtime; 800ml/h max output; ultra-fine vapor for even humidification; precise humidity control with Auto Mode; smart voice and app control; multi-layer filtration; filter change reminders; Dry Mode to reduce mold and extend filter life.

Color: White Water Filter · white
Gender: unisex
Age Group: adult
Condition: used
Dimensions: 9.76 x 9.64 x 24.68
Category: Home & Garden > Household Appliances > Climate Control Appliances > Humidifiers

Additional Attributes

Evaporative Mist-Free Humidification
10L Water Tank
50H Max Runtime
800ml/h Max Output
Ultra-Fine Vapor for Even Humidification
Precise Humidity Control with Auto Mode
Smart Voice & App Control
Smart control with filter change reminders
Multi-Layer Filtration
Dry Mode (helps prevent moisture buildup and mold)
Noise Level: 32dB
Power: 12VDC 15W
Adapter: Rated Input 100-240VAC 50/60Hz; Output 12VDC 1.25A
Product Dimensions: 9.76D x 9.64W x 24.68H
Includes: Dreo 774S Humidifier, User Manual, Power Adapter, Quick Start Guide
Available color options: White Water Filter, Black

Image Analysis

4 images

01high: Tall cylindrical air purifier with perforated grille, top vent and touch control panel, DREO logo on front, shown next to a smartphone displaying a companion app.
OCR: DREO. Device Name. Auto 65%. 9:00 PM. 72
matte dark gray cylindrical bodyperforated cylindrical grilletop circular vent with radial bladestop touch control panelblue LED ring on topvertical water level windowrounded basewhite DREO logo on frontsmartphone showing app interfacestudio white backgrounddigital airflow effect above top vent
02high: Room scene showing a cylindrical black humidifier on a beige carpet near a light green sofa with a patterned pillow and throw blanket; stylized blue-white vapor graphics, informational bubbles, and sunlight through glass doors are visible.
OCR: Ultrafine Vapor Uniform Humidity. 1000 ft2 Max Coverage. 7.54 Feet* Ultra-High Airflow. Evaporative Humidifiers 0.0004 μm Ultrafine Vapor. Traditional Ultrasonic Humidifiers 10 μm. *Measured from the ground at the highest fan speed.
cylindrical black humidifier with top air outlet and digital displaygreen upholstered sofapatterned teal and white throw pillowbeige knit throw blanketbeige carpeted floorwhite floor-length curtainsglass French doors with grid panessunlight entering through doorsblue and white stylized airflow/vapor graphicstwo translucent circular info bubbles with textclose-up panel comparing evaporative and ultrasonic droplets
03high: Living room scene showing a matte black cylindrical humidifier in foreground emitting a blue airflow visualization; a woman reads on a green sofa, a cat sits on the floor, and sunlight enters through large windows.
OCR: DREO | Humidifier 774S. Mist-Free. Healthier Humidity. 10L Water Tank. 50H* Max Runtime. 800ml/h Max Output. *Tested by DREO lab under conditions of 40% humidity at the lowest fan speed. Actual results may vary by ±20% depending on room conditions.
cylindrical black humidifiermatte black finishtop air outlet grilleperforated lower bodyblue airflow visualization graphicgreen upholstered sofabeige throw blanketdecorative chevron pillowwooden herringbone floorlarge multi-pane windowswoman sitting reading a bookorange and white longhair cattable lamp with beige shadesmall side tablepotted plant on side tablelight beige area rugkitchen cabinets in backgroundstair balusters visible aboveprominent logo text 'DREO'large headline text in image
04high: Promotional interior scene showing a matte black cylindrical air purifier in a living space with visible blue filter glow, a woman doing yoga on a mat to the left, and an orange tabby cat pawing the purifier near a green kitchen island.
OCR: Enjoy Healthy Mist-Free Comfort. Fast Filtration. Prevent Moisture Buildup. Odor-Free and Hygienic
cylindrical air purifier unitmatte black finishblue illuminated filter chambertop air outlet ventsfront water level indicator lightDREO logo on unitorange tabby catwoman in olive green yoga outfityoga matwooden floorgreen kitchen island with marble countertopbeige painted wallsoft directional lightingstudio style product shotpromotional headline text at top

Brand PDP Lookup

Brand: Dreo
URL: https://www.dreo.com/products/smart-humidifier-774s-10l

Smart Humidifier 774S 10L

Also Seen Here

4 retailers

brandclub.com
medium
DREO Smart Evaporative Humidifier Large Room up to 1000ft², 800ml/h High Output Air Humidifiers for Bedroom, 10L, 50H Long Runtime with Precise Humidification for Plants, Home, Office, White, HHM774S
Dreo
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kidsy.co
high
DREO HHM774S Smart Evaporative Humidifier 10L (Black)
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ubuy.fr
medium
DREO Smart Evaporative Humidifier Large Room up to 1000ft2, 800mlh High Output Air Humidifiers for Bedroom, 10L, 50H Long Runtime with Precise Humidification for Plants, Home, Office, Black, HHM774S
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fromrebel.com
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Dreo Smart Evaporative Humidifier - Black
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Documents & Data

Reddit Insights

3 threads · r/Humidifiers, r/DREO, r/BuyItForLife

Reddit users generally appreciate the Dreo 774S's mist-free evaporative technology and low maintenance but find it bulky and noisy for bedroom use.

mixed sentiment80% match

Positive on cleanliness, no white dust, and smart features; negative on size, noise, and some usability issues like the heavy tank and tricky cleaning.

Themes

Evaporative technology advantagespositive

Noise level and fan soundnegative

Build quality and design flawsnegative

Maintenance and cleaningmixed

Use Cases

Whole-house or large space humidification without white dust
Homes with hardwood floors or sensitive electronics

Watch Out For

mediumThe fan noise is often too loud for quiet environments like bedrooms, even on low settings.

mediumThe water tank is heavy and awkward to carry when full, making refills cumbersome.

highSome users report mold growth in hard-to-reach areas if not cleaned thoroughly and regularly.

Community Q&A

How noisy is the Dreo 774S?: Noise is a common complaint; the fan is audible even on low and may disturb sleep if used in a bedroom.
Is it easy to clean?: The washable filter and modular design help, but the heavy tank and deep crevices make manual cleaning awkward.

Compared To

vs Ultrasonic humidifiers

The 774S eliminates white dust and wet surfaces common with ultrasonic models but is louder and bulkier.

Source Threads

Mixed first impressions of the new Dreo evaporative humidifier
I just got the new Dreo evaporative humidifier (774S). It's big... much larger than I expected. But the mist-free output is nice—no white dust on my furniture. The app setup was easy and the smart features work well. However, the fan noise is noticeable even on the lowest setting. I'm not sure I can sleep with it in the bedroom. Also, the tank is heavy to carry when full.
u/throwaway_humidr/HumidifiersView thread →
Tips and frustrations on cleaning the HHM774S
I've had the HHM774S for a few months now. Love the humidity control, but cleaning it is a pain. The washable filter is easy to rinse, but the water tank has deep crevices that are hard to reach. I've noticed a slight musty smell if I don't dry it thoroughly after washing. Dry mode helps, but I still wish the design was more user-friendly for cleaning.
u/CleanAirFanaticr/DREOView thread →
Recommendation for a reliable bedroom humidifier – Dreo 774S considered but noisy
I tried the Dreo 774S evaporative model. It works great for my living room—no white dust, and the humidity levels are steady. But I wouldn't put it in a bedroom. The fan is too loud for sleeping. I ended up getting a smaller ultrasonic for the bedroom. If you need a big-room humidifier and don't mind the noise, it's a solid choice.
u/homecomfortguyr/BuyItForLifeView thread →