Dreo HM735S 11L Smart Humidifier: Can It Really Cover 700 ft² in 2026?
The Dreo HM735S is a high-capacity smart humidifier that covers 700 sq ft for up to 100 hours at whisper-quiet 26dB. It delivers top-tier convenience with app control, top-fill design, and self-cleaning at a fair price.
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Key Specifications
Best For
How this humidifier scores for different use cases
The 26dB noise level is whisper-quiet, and the 100-hour runtime means no refills for 4 nights. Auto shut-off, RGB night light, and sleep mode make it ideal for bedrooms.
700 sq ft coverage is excellent for large rooms, and the 11L tank with 100-hour runtime minimizes refills. The 3,900 RPM motor delivers mist over 6 ft high for even distribution.
WiFi control, dedicated app, remote control, and voice assistant compatibility provide strong smart home integration. Scheduling and humidity customization through the app add automation.
Cool mist only, 26dB quiet operation, auto shut-off, and app control are excellent for nurseries. BPA-free status is not confirmed, which slightly lowers the score for baby safety.
At 30.91 inches tall and 11 liters, this humidifier is far too large for a desk or personal workspace. It is designed for whole-room use, not desktop applications.
At nearly 6 pounds and over 30 inches tall with an 11-liter tank, this is not portable or travel-friendly in any way.
Our Verdict
The Dreo HM735S solves the biggest humidifier headache: constant refilling. Its 11-liter tank delivers up to 100 hours of mist. That means you fill it once and forget it for 4 days.
It covers 700 square feet with ultrafine 5-micron mist. The 3,900 RPM motor pushes mist over 6 feet high. Your whole room gets even humidity without wet spots on the floor.
At 26dB, this humidifier is quieter than a library. The RGB night light adds a gentle glow. You and your family can sleep without any disruption.
The smart features set it apart from basic humidifiers. Control everything through the Dreo app, voice commands, or the included remote. Set schedules, adjust humidity targets, and get cleaning reminders.
Top-fill design lets you add water without removing the tank. The self-cleaning function reduces maintenance effort. The aroma box lets you add essential oils for a pleasant scent.
At $125.99, you pay more than a basic humidifier. But you get smart controls, massive capacity, and whisper-quiet operation. The value is strong for what you receive.
The main gap is no warm mist option. If you want heated mist for cold and flu season, look elsewhere. For cool mist needs, this covers nearly everything.
What We Like
- The 11-liter tank runs up to 100 hours, so you refill it only every 4 days.
- Covers up to 700 sq ft with mist that reaches over 6 feet high.
- Runs at just 26dB, quieter than a whisper for peaceful sleep.
- WiFi app control, remote, and voice commands let you adjust settings from anywhere.
- Top-fill design and self-cleaning tank make refilling and maintenance simple.
What Could Be Better
- No warm mist option. You only get cool mist output.
- No dual mist mode to combine warm and cool mist together.
- BPA-free materials are not confirmed in the product specs.
- At nearly 31 inches tall, it takes up significant floor space.
- No built-in hygrometer display on the unit itself for at-a-glance humidity readings without the app.
Standout Features
Full Specifications
Humidification Performance
| Coverage Area | 700 |
Noise & Comfort
| Noise Level | 26 – 26 – dB |
Physical & Dimensions
| Weight | 5.94 |
| Width | 8.86 |
| Depth | 10.24 |
| Height | 30.91 |
Additional Info
| Warranty | 12-month default, extendable to 30 months |
Features
Included Features
Not Included
Frequently Asked Questions
Common questions aboutDreo HM735S 11L Smart Humidifier Large Room 700 ft², 100H Cool Mist Air Humidifiers for Bedroom, Top-Fill Self-Cleaning Tank, 26dB, Auto Mode, Aroma Box, RGB Light, Remote & APP Control, Baby, White
How often do I need to refill the Dreo HM735S?
The 11-liter tank lasts up to 100 hours on a single fill. That is about 4 days of nonstop use before you need to add water.
Is the Dreo HM735S quiet enough for a bedroom?
Yes. It runs at just 26dB, which is quieter than a whisper. It also has an RGB night light you can customize or turn off.
Can I control this humidifier with my phone?
Yes. The Dreo app lets you set schedules, adjust humidity levels, get cleaning reminders, and control the unit remotely. It also works with a physical remote control.
Does this humidifier produce warm mist?
No. The HM735S only produces cool mist using ultrasonic technology at 2.4MHz. It does not have a warm mist or dual mist option.
How big of a room can the Dreo HM735S cover?
It covers rooms up to 700 square feet. The high-speed motor pushes mist over 6 feet high for even distribution across large spaces.
Best For
How this humidifier scores for different use cases
The 26dB noise level is whisper-quiet, and the 100-hour runtime means no refills for 4 nights. Auto shut-off, RGB night light, and sleep mode make it ideal for bedrooms.
700 sq ft coverage is excellent for large rooms, and the 11L tank with 100-hour runtime minimizes refills. The 3,900 RPM motor delivers mist over 6 ft high for even distribution.
WiFi control, dedicated app, remote control, and voice assistant compatibility provide strong smart home integration. Scheduling and humidity customization through the app add automation.
Cool mist only, 26dB quiet operation, auto shut-off, and app control are excellent for nurseries. BPA-free status is not confirmed, which slightly lowers the score for baby safety.
At 30.91 inches tall and 11 liters, this humidifier is far too large for a desk or personal workspace. It is designed for whole-room use, not desktop applications.
At nearly 6 pounds and over 30 inches tall with an 11-liter tank, this is not portable or travel-friendly in any way.
Scores
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