Levoit Humidifier LUH-D302-WAE Manual

The Levoit LUH-D302-WAE is a 2.5L ultrasonic cool mist humidifier designed for medium to large rooms. It features a 360° nozzle, adjustable mist output, optional night light, auto shut-off when water runs low, and a quiet operation mode. Below are key sections for safety, features, installation, 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: 2.5L water tank, ultrasonic mist generator, 360° adjustable nozzle, control panel with touch buttons, night light, and water level indicator.

Feature	Description
Water Tank Capacity	2.5 liters (0.66 gallons)
Mist Output	Adjustable from low to high (up to 300 mL/h)
Run Time	Up to 25 hours on low setting
Nozzle	360° rotatable for directional mist control
Night Light	Optional warm white light with on/off control
Auto Shut-Off	Automatically turns off when water level is low
Quiet Operation	Ultrasonic technology for whisper-quiet performance
Control Panel	Touch buttons for power, mist level, timer, and light
Filter	Optional demineralization cartridge (sold separately)
Power Source	AC 120V, 60Hz, 24W

Installation & Setup

Unpack and inspect all components. Place on a flat, stable, and water-resistant surface.

Remove the water tank from the base unit.
Fill the tank with clean, cool tap water up to the MAX line. Do not overfill.
Securely reattach the tank to the base, ensuring it sits evenly.
Plug the power adapter into the base unit and then into a standard 120V AC outlet.

WARNING! Place the humidifier on a level surface away from direct sunlight, heat sources, and electronic devices. Keep out of reach of children.

First-Time Use

Power on the humidifier and configure initial settings.

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

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

Specifications

Model: LUH-D302-WAE
Tank Capacity: 2.5L (0.66 gal)
Coverage Area: Up to 250 sq ft
Mist Output: Up to 300 mL/h
Run Time: 10-25 hours (depending on mist setting)
Noise Level: ≤ 30 dB
Power Consumption: 24W
Power Supply: AC 120V, 60Hz
Dimensions: 8.7" x 8.7" x 11.4"
Weight: 3.3 lbs (empty)

Controls and Settings

Control Panel (located on top of base unit):

Touch Buttons: POWER (On/Off), MIST (adjust output level: Low/Med/High), TIMER (set auto-off: 1-12 hrs), LIGHT (night light On/Off).

Indicator Lights: Blue LED indicates power and mist level. Night light emits a soft warm white glow.

Nozzle Control: Manually rotate 360° to direct mist flow.

Auto Shut-Off: Activates when water tank is empty or removed. Unit beeps twice and power indicator flashes.

Operation Modes

Daily Operation:

Ensure the unit is plugged in and the tank is filled with water.
Press POWER to start. Default mist setting is Medium.
Adjust mist level as needed using the MIST button.
Use TIMER to program automatic shut-off after 1, 2, 4, 8, or 12 hours.
Press LIGHT to enable/disable the night light for bedtime use.
When the tank is empty, the unit will beep, shut off automatically, and the power light will flash.

Tip: For best performance, use distilled or demineralized water to reduce white dust. Clean the unit regularly as described in the Maintenance section.

Maintenance & Cleaning

Regular cleaning prevents mold and mineral buildup.

Unplug the unit before cleaning.
Empty any remaining water from the tank and base.
Clean the tank and base with a soft cloth and mild detergent. Rinse thoroughly.
Use a cotton swab to clean the mist outlet and sensor.
Descale monthly if using hard water: Mix white vinegar and water (1:1), fill the tank halfway, let sit for 15-20 minutes, then rinse thoroughly.
Dry all parts completely before reassembling and storing.

CAUTION! Do not immerse the base unit in water. Do not use abrasive cleaners or brushes.

Safety Features

Auto Shut-Off: Turns off the unit when the water tank is empty or improperly placed.

Tip-Over Protection: The unit will stop misting if tilted or knocked over.

Overheat Protection: Internal safety mechanism prevents overheating.

BPA-Free Materials: All water-contact parts are made from BPA-free materials.

Regulatory Information

FCC Compliance: 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 rights reserved. For support, visit support.levoit.com or contact 1-888-726-8520.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No mist output	Empty tank / Incorrect assembly	Refill water tank; ensure tank is properly seated on base.
Low mist output	Mineral buildup / Low mist setting	Clean mist outlet and tank; increase mist setting to High.
White dust around unit	Hard water minerals	Use distilled or demineralized water; clean unit more frequently.
Unit not turning on	No power / Auto shut-off active	Check power connection; ensure tank has water and is properly placed.
Water leakage	Overfilled tank / Loose parts	Do not fill above MAX line; check that all seals and caps are tight.
Unusual noise	Debris in water / Vibration	Use clean water; ensure unit is on a flat, stable surface.

Reset: Unplug the unit for 2 minutes, then plug back in.

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