The Levoit Humidifier Dual 150 (Model LUH-D302-WEU) is a cool mist humidifier designed for medium to large rooms up to 40m². It features a 4.5L water tank, dual 150mL/h mist output, 360° nozzle, optional night light, three mist levels, auto mode, timer (1-12 hours), and a built-in humidity sensor. It operates quietly (<35dB) and includes essential safety features like low water protection and automatic shut-off. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.
Key components: 4.5L Transparent Water Tank, 360° Rotating Nozzle, Control Panel, Built-in Handle, Air Inlet, Water Tank Cap, Base Unit, Power Adapter.
| Feature | Description |
|---|---|
| Water Tank Capacity | 4.5 Liters |
| Mist Output | Dual 150mL/h (Max 300mL/h) |
| Coverage Area | Up to 40m² (430 sq ft) |
| Noise Level | <35dB (Quiet Operation) |
| Mist Levels | Low, Medium, High |
| Operation Modes | Manual, Auto (with humidity sensor) |
| Timer | 1 to 12 hours |
| Night Light | Optional On/Off with adjustable brightness |
| 360° Nozzle | Adjustable mist direction |
| Power | 24V DC, 0.6A (Adapter included) |
Unpack and inspect all contents. Place on a stable, level, and dry surface away from direct sunlight and heat sources.
WARNING! Always use the provided power adapter. Ensure hands are dry when handling the unit or plug. Do not place on carpets or uneven surfaces.
Power on the humidifier; the control panel will illuminate.
CAUTION! Use only clean, cool water. Never add essential oils, fragrances, or chemicals directly into the water tank, as this may damage the unit and void warranty.
Access all functions via the touch control panel on the top of the unit.
Control Panel Buttons: POWER, MODE, MIST, TIMER, LIGHT, Humidity +/-.
Indicator Lights: Power, Mode (Manual/Auto), Mist Level (Low/Med/High), Timer, Night Light, Low Water Warning (Red).
Manual Mode: User selects fixed mist level (Low, Medium, High). Auto Mode: Unit uses built-in sensor to adjust mist output to maintain user-set humidity (40%-80%). Timer: Set 1-12 hours for automatic shut-off. Night Light: Soft white light with adjustable brightness or off.
Choose the best mode for your comfort and efficiency.
Tip: For energy savings and optimal comfort, use Auto Mode with a target humidity of 50-60%.
Regular cleaning is essential for performance, air quality, and longevity.
CAUTION! Never use abrasive cleaners, detergents, or chemicals. Never immerse the base unit, control panel, or power adapter in water. Unplug before any cleaning.
The humidifier includes multiple protections for safe operation.
WARNING! This is an electrical appliance. Keep away from children. Do not operate if cord or plug is damaged. Do not cover the mist outlet or air inlet during operation.
This device complies with relevant EU directives including Low Voltage Directive 2014/35/EU, EMC Directive 2014/30/EU, and RoHS Directive 2011/65/EU. The CE mark indicates conformity. Copyright © Levoit. For support within the EU, visit www.levoit.com or contact your local retailer. Disposal: Dispose of the product according to local WEEE (Waste Electrical and Electronic Equipment) regulations. Do not dispose with household waste.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Unit does not turn on | No power / Loose connection | Ensure power adapter is firmly plugged into unit and wall outlet. Check if outlet is working. |
| No mist output | Empty tank / Low water / Nozzle blocked | Refill water tank. Ensure tank is seated correctly. Check and clean nozzle for blockages. |
| Red light is on | Low water level | Refill the water tank and ensure it is properly placed on the base. |
| Weak mist output | Mineral buildup / Low mist setting | Clean tank and base (descale with vinegar). Increase mist level in Manual Mode. |
| Water leakage | Tank cap not tight / Cracked tank | Ensure tank cap is securely tightened. Inspect tank for cracks or damage; replace if necessary. |
| Unusual noise | Unit not level / Foreign object | Place on a flat, hard surface. Check base for water or foreign objects; clean and dry. |
| Auto Mode not maintaining humidity | Sensor blocked / Room too large | Ensure air inlet/outlet is not blocked. Verify room size is within 40m² coverage. |
Reset: Unplug the unit for 2 minutes, then plug back in to reset the control system.
Service: For warranty or technical support, visit support.levoit.com or contact the retailer. Do not attempt to repair the unit yourself.