Levoit Humidifier LUH-D302-WUK Manual

The Levoit LUH-D302-WUK is a 4.5L cool mist humidifier designed for medium to large rooms. It features a 360° nozzle, three mist levels, a built-in essential oil diffuser, a night light with two brightness settings, an auto mode for maintaining optimal humidity, a 12-hour timer, and a top-fill design for easy refilling and cleaning. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: 4.5L water tank, 360° adjustable mist nozzle, control panel, essential oil tray, night light, and power adapter.

Installation & Setup

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

1. Remove all packaging materials from the humidifier and water tank.
2. Place the humidifier base on a stable, level surface away from walls and electronics.
3. Fill the water tank: Remove the tank, open the top lid, fill with clean, cool tap water (do not exceed MAX line).
4. Reattach the water tank to the base securely.
5. Plug the power adapter into the humidifier and then into a standard 120V AC outlet.

WARNING! Do not place on carpets or uneven surfaces. Ensure the unit is upright before operation.

First-Time Use

Power on the humidifier; the indicator light will illuminate.

1. Press the POWER button to turn on the unit. It will start in the last used mode or default to Low mist.
2. Adjust mist level: Press the MIST button to cycle through Low, Medium, and High settings.
3. Set the timer: Press the TIMER button to set a shut-off time from 1 to 12 hours.
4. Activate Auto Mode: Press the AUTO button to enable automatic humidity control (requires built-in sensor).
5. Adjust night light: Press the LIGHT button to cycle through Bright, Dim, and Off settings.

CAUTION! Use only clean, cool water. Do not use hot water or add oils directly to the water tank.

Specifications

• Model: LUH-D302-WUK
• Tank Capacity: 4.5L (1.2 Gal)
• Room Coverage: Up to 505 sq ft
• Mist Output: 300 mL/h Max
• Run Time: Up to 40 hours (Low), 24 hours (Med), 16 hours (High)
• Noise Level: ≤ 30 dB (Low setting)
• Power Consumption: 25W Max
• Power Input: 120V AC, 60Hz
• Dimensions (LxWxH): 9.8 x 9.8 x 13.4 inches
• Weight: 4.85 lbs (empty)

Controls and Settings

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

Control Panel: POWER, MIST (Level), TIMER, AUTO, LIGHT (Night Light).

Indicator Lights: Blue for power/mode, Orange for timer, Green for auto mode.

Mist Adjustment: Three levels (Low/Med/High) control output intensity and run time.

Timer: Programmable from 1-12 hours in 1-hour increments. Unit will beep and shut off.

Auto Mode: Uses built-in humidity sensor to maintain a comfortable 50-60% RH.

Night Light: Soft LED with two brightness levels or can be turned off completely.

Operation Modes

Manual Mode: User selects mist level (Low, Medium, High). Auto Mode: Unit automatically adjusts mist output based on room humidity.

1. For constant humidity: Use Auto Mode. The unit will cycle between off and low/medium mist.
2. For maximum output: Use High mist setting. Ideal for very dry conditions.
3. For quiet operation: Use Low mist setting, especially during sleep.
4. For scheduled use: Set the timer to automatically turn off the unit after 1-12 hours.

Tip: Adjust the 360° nozzle to direct mist away from walls, furniture, and electronics.

Maintenance & Cleaning

Regular cleaning is essential to prevent mold and mineral buildup.

1. Daily: Empty and rinse the water tank if not in use for more than 24 hours.
2. Weekly: Deep clean the tank and base.
   • Unplug the unit.
   • Disassemble: Remove tank, water tray, and nozzle.
   • Clean with a soft brush and a mixture of white vinegar and water (1:1 ratio) to descale.
   • Rinse all parts thoroughly with clean water and air dry completely before reassembly.
3. Filter: This model is filter-free. No filter replacement is required.

WARNING! Never immerse the base unit in water. Do not use abrasive cleaners or chemicals.

Using Essential Oils

The built-in essential oil tray allows for aromatherapy. DO NOT add oils directly to the water tank.

1. Ensure the humidifier is off and unplugged.
2. Pull out the small essential oil tray located near the control panel.
3. Add 3-5 drops of your preferred 100% pure essential oil into the tray.
4. Slide the tray back into its slot securely.
5. Operate the humidifier as normal. The mist will carry the aroma.

CAUTION! Use only pure essential oils. Clean the oil tray regularly to prevent clogging.

Safety Information

• Use only the provided power adapter.
• Always unplug the unit before cleaning, refilling, or when not in use for extended periods.
• Use only clean, cool tap or distilled water. Do not use hot water.
• Place on a moisture-resistant surface. Do not use on carpet.
• Keep out of reach of children and pets.
• Do not operate the unit without water in the tank.
• Do not block the mist nozzle or air inlet/outlet vents.
• If the unit is tipped over, unplug it immediately and empty all water before resuming use.

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 © Levoit. All rights reserved. For support, visit www.levoit.com or contact customer service at 1-888-726-8520.

Troubleshooting

Reset: Unplug the unit for 60 seconds to perform a soft reset.

Service: For issues not resolved above, contact Levoit Support: 1-888-726-8520 or www.levoit.com/support