Levoit Humidifier Dual 150 LUH-D302-BEU Manual

The Levoit Humidifier Dual 150 (Model LUH-D302-BEU) is a compact, dual-mist humidifier designed for medium to large rooms up to 150 sq ft. It features a 2.5L water tank, adjustable mist output (low/medium/high), 360° nozzle, optional night light, auto shut-off, and quiet operation. Ideal for improving air quality and relieving dryness. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation & Setup 3. First-Time Use 4. Specifications 5. Controls and Settings 6. Operating Modes 7. Maintenance & Cleaning 8. Safety Features 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: 2.5L transparent water tank, Dual-mist nozzles, Control panel, 360° adjustable nozzle, Night light, Power adapter.

Feature	Description
Dual Ultrasonic Mist	Produces fine, cool mist from two nozzles
Adjustable Mist Output	Three levels: Low, Medium, High
360° Nozzle	Rotatable for directional mist control
Optional Night Light	Soft blue LED light; can be turned on/off
Auto Shut-Off	Turns off when water tank is empty or removed
Quiet Operation	Ultra-quiet for bedroom or office use
2.5L Water Tank	Transparent for easy water level monitoring
Control Panel	Touch buttons for power, mist level, timer, night light
Timer Function	1-12 hours auto shut-off timer
Filter-Free Design	No replacement filters required

Installation & Setup

Unpack and inspect contents. Place on a flat, stable, and waterproof surface.

Remove all packaging materials from the humidifier and tank.
Place the humidifier base on a level surface away from walls and electronics.
Fill the water tank: Remove tank, fill with clean, cool tap water (do not exceed MAX line).
Reattach tank: Place tank securely onto the base, ensuring it is properly seated.
Plug the power adapter into the DC input on the humidifier, then into a standard 120V AC outlet.

WARNING! Do not place on carpets or uneven surfaces. Keep away from children and pets. Use only the provided power adapter.

First-Time Use

Power on the humidifier; follow control panel prompts.

Press the POWER button to turn on the unit. The default mist level is Medium.
Adjust mist output: Press the MIST button to cycle through Low, Medium, High settings.
Set the timer: Press TIMER to set auto shut-off from 1 to 12 hours (optional).
Adjust nozzle direction: Rotate the 360° nozzle to direct mist away from walls and furniture.
Toggle night light: Press the LIGHT button to turn the blue night light on or off.

CAUTION! Use only clean, cool water. Do not add essential oils, fragrances, or other additives directly into the water tank, as this may damage the unit.

Specifications

Model: LUH-D302-BEU (Dual 150)
Coverage Area: Up to 150 sq ft (14 m²)
Water Tank Capacity: 2.5 Liters (0.66 gallons)
Mist Output: Up to 250 mL/hr (dual nozzles)
Mist Levels: 3 (Low, Medium, High)
Timer: 1-12 hours
Noise Level: ≤ 30 dB (Quiet Mode)
Power Input: 24V DC, 0.5A (Adapter: 100-240V AC, 50/60Hz)
Product Dimensions: 8.7 x 8.7 x 11.8 in (22 x 22 x 30 cm)
Weight: 3.3 lbs (1.5 kg)

Controls and Settings

Access all functions via the touch control panel on the top of the unit.

Control Panel Buttons: POWER (On/Off), MIST (Cycle through Low/Medium/High), TIMER (Set 1-12 hour auto-off), LIGHT (Night light On/Off).

Indicator Lights: Power LED (Blue), Mist Level LEDs (Green for Low, Blue for Medium, Red for High), Timer LED (Amber), Night Light LED (Blue when on).

Settings Overview: Mist output adjustable; Timer programmable; Nozzle direction manually adjustable; Night light optional; Auto shut-off activates when tank is empty or removed.

Operating Modes

Three primary modes based on mist output settings.

Low Mist: Gentle mist output, ideal for maintaining humidity or quiet nighttime use.
Medium Mist: Balanced output for general daily use in medium-sized rooms.
High Mist: Maximum output for quickly raising humidity in dry conditions.
Timer Mode: Set for 1-12 hours; unit will automatically power off after the set time.
Night Mode: Turn off all lights (including night light) for completely dark operation.

Tip: For energy savings, use the timer to run the humidifier only when needed.

Maintenance & Cleaning

Regular cleaning is essential to prevent mold and mineral buildup.

Daily: Empty and refill the water tank with fresh water if not used completely.
Weekly Cleaning: Unplug the unit. Disassemble the tank and base. Clean all parts with a soft cloth and a mixture of white vinegar and water (1:1 ratio) to descale. Rinse thoroughly with clean water.
Drying: Allow all parts to air dry completely before reassembly and use.
Storage: If not using for an extended period, empty all water, clean thoroughly, dry completely, and store in a cool, dry place with the tank separated from the base.

WARNING! Never immerse the base unit, power adapter, or DC plug in water. Do not use abrasive cleaners, detergents, or chemicals.

Safety Features

Auto Shut-Off: Activates when the water tank is empty or improperly seated, preventing damage to the ultrasonic module. Overheat Protection: Built-in sensor protects the unit from overheating. Tip-Over Protection: Unit is designed to minimize leakage if tipped, but should always be kept upright.

Regulatory Information

FCC Part 15: This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. Copyright © 2023 Levoit. All trademarks are the property of Vesync Co., Ltd. For support, visit support.levoit.com or contact customer service at 1-866-376-0313.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No mist output	Empty tank / Low water level	Refill water tank to the MAX line.
Weak mist output	Mineral buildup on transducer	Clean the transducer (silver disc) with vinegar solution as per cleaning instructions.
Unit not powering on	Loose power connection / No power	Ensure power adapter is firmly plugged into unit and wall outlet. Check outlet with another device.
Water leaking	Tank not seated properly / Cracked tank	Remove and reattach tank firmly. Inspect tank for cracks; replace if damaged.
Unusual noise	Vibration from uneven surface / Debris	Place on a flat, hard surface. Ensure unit is clean and free of debris.
Night light not working	LED disabled / Fault	Press LIGHT button to turn on. If still not working, contact support.

Reset: Unplug the unit for 5 minutes, then plug back in to reset the electronic controls.

Service: 1-866-376-0313; support.levoit.com