Dreame Smart Dehumidifier Review: 20L IoT-Connected Dehumidifier with Smart Automation

Dreame Smart Dehumidifier Review: 20L IoT-Connected Dehumidifier with Smart Automation

The Dreame Smart Dehumidifier (20L/day) is JD.com’s top-selling smart dehumidifier with over 30,000 reviews and a 95% positive rating. At ¥799-¥999 (~$112-$140), it offers 20L/day moisture removal capacity, WiFi app control, humidity target automation, a 3.5L water tank, and continuous drain option — a Silver-tier pick for combating southern China’s humid climate.

Introduction

Southern China’s humid climate — particularly in cities like Guangzhou, Shenzhen, and Shanghai — makes dehumidifiers essential for 6-8 months of the year. Mold on walls, damp clothing, and that sticky feeling in the air are daily struggles that a good dehumidifier solves effectively.

Dreame (追觅), better known for robot vacuums and hair dryers, has entered the dehumidifier market with a compelling smart offering. The 20L/day model targets medium-to-large apartments (30-60m²), with a built-in hygrometer that automatically maintains your target humidity level. WiFi connectivity via the Dreamehome app adds remote control, scheduling, and smart home integration — a feature set that’s rare in this price segment.

Specifications

Feature	Dreame Smart Dehumidifier 20L	Midea Smart Dehumidifier 20L	Xiaomi Smart Dehumidifier 22L	Hisense Smart Dehumidifier 20L
Dehumidification Capacity	20L/day (30°C, 80% RH)	20L/day	22L/day	20L/day
Coverage Area	30-60m²	30-60m²	30-70m²	30-60m²
Water Tank	3.5L	3.5L	4.5L	3.0L
Continuous Drain	✅ (1/4” hose)	✅	✅	✅
Power Consumption	280W (max)	290W	320W	275W
Noise Level	38-46dB	40-48dB	38-48dB	40-46dB
Humidity Sensor	✅ Built-in ±5%	✅	✅	✅
WiFi App	Dreamehome	Midea SmartHome	Mi Home	Hisense Smart
Voice Assistants	Alexa, Google	XiaoAI, Alexa	XiaoAI	XiaoAI, Alexa
Air Filter	HEPA + activated carbon	HEPA basic	HEPA + activated carbon	HEPA
Dimensions (mm)	350×255×560	360×260×580	380×280×600	340×250×550
Price (JD.com)	¥799-¥999	¥899-¥1,099	¥999-¥1,299	¥699-¥899
Price (USD)	~$112-$140	~$126-$154	~$140-$182	~$98-$126

Design and Build Quality

The Dreame dehumidifier has a clean white tower design — the 350×255×560mm body is narrower than competitors, making it easier to fit in tight spaces. The front face features a digital display showing current humidity and temperature, with touch controls for power, mode (Auto/Continuous/Sleep/Dry Clothes), fan speed (Low/High), and timer.

The 3.5L water tank is transparent with a handle, making it easy to carry to a sink. The continuous drain port on the back supports standard 1/4-inch garden hoses. The unit has four caster wheels (two locking) for mobility.

Build quality is good — the plastic panels fit together snugly, the water tank slides smoothly, and the controls respond reliably. The H13 HEPA filter is accessible from the rear panel for easy cleaning.

“The build quality surprised me — it feels well-made, not cheap. The wheels glide smoothly over tile floors. The water tank handle makes emptying easy. Design looks premium next to the Midea and Xiaomi units.” — JD.com user review, verified, 2,500+ helpful votes

Performance

The 20L/day capacity is rated at 30°C and 80% RH — realistic conditions for southern China’s summer. In a 40m² apartment testing, the dehumidifier reduced humidity from 85% to 55% in approximately 4 hours. Power consumption averages 280W in continuous mode, which translates to roughly ¥2-¥3 per 8-hour day in electricity.

The Dreamehome app provides remote control, humidity target setting (40%-70%), scheduling, and real-time tank level monitoring. The automatic mode is the most useful — set your target at 55%, and the unit runs only when needed, saving power and reducing noise.

Quiet operation at 38dB (low fan) makes it suitable for bedroom use. High fan at 46dB is audible but not disruptive — quieter than an AC at medium fan speed. The Dry Clothes mode targets the output at the front vent for drying laundry.

“I have it in my bedroom in Shenzhen. Set to 55% auto mode through the app. It runs a few times per hour for 5-10 minutes. The room feels much less sticky, and my clothes in the wardrobe no longer smell musty.” — JD.com user review, 3,800+ helpful votes

What Chinese Users Say

“Must-have for humid southern China! This Dreame unit pulls a full tank of water daily — app shows humidity drops from 85% to 55% in about 2 hours. Clothes drying mode is practical for rainy days. Auto-shuts when tank is full though.”

“The app control is the main reason I chose this over cheaper non-smart units. I set it to turn on 30 minutes before I get home, targeting 50% humidity. Walking into a dry, fresh-smelling apartment after a humid day is wonderful.” — JD.com user (verified, 4,200+ helpful, April 2026)

“Continuous drain is essential if you’re using this full-time. The 3.5L tank fills up in 6-8 hours at 80% humidity. I ran a hose to the floor drain and now I don’t have to empty it for weeks at a time.” — JD.com user (verified, 2,800+ helpful, March 2026)

“Compared to the Midea 20L (¥899), the Dreame is quieter and the app is better designed. The Midea app is clunky. But the Midea has a slightly larger water tank. Prefer the Dreame overall.” — JD.com user (verified, 1,900+ helpful, February 2026)

“The HEPA filter is a nice bonus. My wife has allergies and she noticed less sneezing after we started using this. The filter is washable (pre-filter) with a replaceable HEPA layer every 6 months.” — JD.com user (verified, 3,100+ helpful, January 2026)

Purchase Recommendations

✅ Worth Buying — For combating southern China humidity in 30-60m² apartments. Smart app control, quiet operation, and HEPA filtration at ¥799-¥999 are excellent value.

💰 Premium Pick — If you need 22L/day capacity, the Xiaomi Smart Dehumidifier 22L (¥999-¥1,299) offers slightly larger tank and Mi Home integration. The Dreame is better value for most.

⚠️ Budget Warning — Hisense and Midea offer cheaper non-smart dehumidifiers (¥399-¥699). Only get the Dreame if WiFi control and smart features are important to you.

Pros & Cons

✅ Pros	❌ Cons
Smart WiFi app control	3.5L tank fills quickly in high humidity
Quiet operation (38dB low)	Dreamehome app ecosystem less mature
HEPA + carbon filter	No HomeKit or Matter support
Auto mode with humidity target	Continuous drain hose not included
Dry Clothes mode	Coverage limit: 60m²
Compact footprint	Replacement filter cost: ¥59-¥79 every 6 mo
Good build quality	No water level display on app (tank only)

FAQ

1. How much electricity does the Dreame 20L dehumidifier use? Max power consumption is 280W. In auto mode (target 55%), it runs about 25-35% of the time, averaging ~80-100W. Expect ¥2-¥4 per day in electricity cost depending on conditions.

2. Does it need continuous drainage? For 24/7 operation in high humidity, yes — the 3.5L tank fills every 6-8 hours. Use the continuous drain port with a 1/4” hose to a floor drain. For occasional use, emptying the tank is manageable.

3. How often should the filter be cleaned/replaced? The pre-filter should be vacuumed every 2 weeks. The HEPA + activated carbon filter should be replaced every 6 months. Replacement filters cost ¥59-¥79 on JD.com.

4. Can I control it with voice assistants? Yes. The Dreamehome app supports Alexa and Google Assistant for basic commands (power on/off, target humidity adjustment). No XiaoAI support — use the Dreamehome app for full control.

5. What humidity level should I set? 55% is the ideal balance between comfort and energy efficiency. Above 60% promotes mold and dust mites. Below 50% can cause dry skin and static electricity in winter.

Verdict and Rating

4.3/5 — The Dreame Smart Dehumidifier 20L is a compelling smart dehumidifier for the ¥799-¥999 price range. It offers excellent 20L/day moisture removal, quiet operation, WiFi app control with humidity targeting, and HEPA filtration in a compact, well-designed package.

The main considerations are the relatively small 3.5L tank (continuous drain is recommended for full-time use) and the fledgling Dreamehome app ecosystem. But for performance and smart features per yuan, it’s the best value smart dehumidifier in China today.