Levoit Humidifier Dual 150 Manual

The Levoit Humidifier Dual 150 is a compact, dual-mist ultrasonic humidifier designed for small to medium rooms. It features adjustable mist output (low/high), a 1.5L water tank, 360° nozzle, optional night light, auto shut-off when empty, 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. Operation Modes 7. Maintenance & Cleaning 8. Safety Features 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Water Tank, Base Unit, Mist Nozzle, Control Panel, Power Adapter.

Feature	Description
Dual Mist Output	Adjustable low/high mist settings for customized humidity
1.5L Water Tank	Provides up to 10 hours of continuous operation on low setting
360° Nozzle	Rotatable for directing mist in any direction
Optional Night Light	Soft blue light that can be turned on/off
Auto Shut-Off	Automatically turns off when water tank is empty
Quiet Operation	Ultrasonic technology operates below 30dB
Control Panel	Touch buttons for power, mist level, and night light
Power Adapter	DC 24V input for safe operation
Water Window	Visible water level indicator
Carry Handle	Integrated handle for easy transport

Installation & Setup

Unpack and inspect all components. Place on flat, stable surface away from electronics.

Remove water tank: Lift tank from base unit.
Fill with water: Turn tank upside down, remove cap, fill with cool tap water (do not exceed MAX line).
Replace cap securely: Ensure cap is tight to prevent leaks.
Place tank on base: Align tank with base and set down gently.
Connect power: Plug adapter into base unit, then into 120V AC outlet.

WARNING! Use only clean, cool tap water. Do not use hot water, oils, or additives unless specified. Keep away from children.

First-Time Use

Power on humidifier; adjust settings as needed.

Press POWER button: Unit will beep and default to low mist setting.
Adjust mist level: Press MIST button to toggle between low and high output.
Set night light: Press LIGHT button to turn soft blue light on/off.
Direct mist: Rotate 360° nozzle to desired direction.
Monitor water level: Check water window regularly; refill when low.

CAUTION! Place on water-resistant surface. Ensure unit is level to prevent water leakage.

Specifications

Model: Levoit Dual 150.
Tank Capacity: 1.5 liters (0.4 gallons).
Run Time: Up to 10 hours (low), 6 hours (high).
Mist Output: Adjustable: Low ~ 30 mL/h, High ~ 50 mL/h.
Room Coverage: Up to 250 sq ft.
Noise Level: < 30 dB.
Power Input: DC 24V, 0.5A.
Power Consumption: 12W.
Dimensions: 7.5" x 7.5" x 10.2".
Weight: 2.2 lbs (empty).

Controls and Settings

Control Panel (top of base unit): POWER, MIST, LIGHT buttons.

POWER: Turns humidifier on/off. Short beep confirms action.
MIST: Cycles through mist levels: Low (one LED) → High (two LEDs).
LIGHT: Toggles night light on (blue LED illuminated) or off.
Indicator Lights: Blue LED for power/night light; green/blue LEDs for mist level.
Auto Shut-Off: Activated when tank is empty; all lights turn off.

Operation Modes

Two primary modes: Continuous and Interval (manual).

Continuous Mode: Run on low or high until tank empties (auto shut-off).
Interval Mode: Manually turn on/off as needed for periodic humidification.
Night Mode: Use low mist + night light for bedroom comfort.
Day Mode: Use high mist for quick humidity boost.

Tip: For best results, place unit at least 12 inches from walls and furniture.

Maintenance & Cleaning

Regular cleaning prevents mold and mineral buildup.

Unplug unit and remove water tank.
Empty any remaining water from tank and base.
Clean tank: Use mild soap and soft cloth; rinse thoroughly.
Clean base: Wipe ultrasonic plate with damp cloth; do not submerge.
Descale monthly: Use white vinegar solution (1:1 with water), soak for 20 mins, then rinse.
Dry completely before reassembly.

WARNING! Never immerse base in water. Do not use abrasive cleaners.

Safety Features

Auto Shut-Off: Activates when water level is too low. Overheat Protection: Internal sensor prevents overheating. Tip-Over Protection: Unit stops if knocked over (if equipped).

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © Levoit. For support, visit www.levoit.com or contact 1-888-726-8520. This product is covered by a 1-year limited warranty.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No mist output	Empty tank / Incorrect setup	Fill tank with water; ensure tank is seated properly on base.
Weak mist	Mineral buildup / Low setting	Clean ultrasonic plate; select high mist setting.
Unit not turning on	No power / Adapter issue	Check power outlet; ensure adapter is firmly connected.
Water leakage	Loose cap / Overfilled tank	Tighten tank cap; do not fill above MAX line.
Unusual noise	Debris in water / Vibration	Use filtered water; place unit on flat, stable surface.
Night light not working	LED issue / Button not pressed	Press LIGHT button firmly; contact support if LED fails.

Reset: Unplug for 1 minute, then restart.

Service: 1-888-726-8520; www.levoit.com