Levoit Humidifier LUH-D301S-WEU Manual

The Levoit LUH-D301S-WEU is a 3L ultrasonic cool mist humidifier designed for medium to large rooms. It features a 360° nozzle, adjustable mist levels, a built-in essential oil diffuser tray, night light with auto-off, low water indicator, and quiet operation. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: 3L water tank, ultrasonic mist generator, 360° adjustable nozzle, control panel, essential oil tray, night light, and power adapter.

Installation & Setup

Unpack and inspect all components. Place on a flat, stable, and level surface away from direct sunlight and electronics.

1. Remove the water tank from the base unit.
2. Fill the tank with clean, cool tap water up to the MAX line. Do not overfill.
3. Securely reattach the tank to the base, ensuring it is properly seated.
4. Plug the power adapter into the humidifier and then into a standard 220-240V AC wall outlet.

WARNING! Always place the humidifier on a water-resistant surface. Do not place on carpets or uneven surfaces where it may tip over.

First-Time Use

After installation, power on the humidifier and configure initial settings.

1. Press the POWER button to turn on the unit.
2. Press the MIST button to cycle through mist levels (Low → Medium → High). Select desired setting.
3. Rotate the 360° nozzle to direct mist away from walls, furniture, and electronics.
4. To use the night light, press the LIGHT button once to turn on. Press and hold for 2 seconds to enable auto-off (light turns off after 30 minutes).

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

Specifications

• Model: LUH-D301S-WEU
• Tank Capacity: 3L
• Room Coverage: Up to 25 m² / 270 sq ft
• Mist Output: 300 ml/h max
• Operation Time: 10-30 hours (depending on mist level)
• Power Consumption: 25W
• Input Voltage: 220-240V AC, 50/60Hz
• Noise Level: <28 dB
• Product Dimensions: 23.5 x 23.5 x 33.5 cm
• Weight: 1.8 kg (with empty tank)

Controls and Operation

Control Panel: POWER button, MIST level button, LIGHT button.

Power: Press to turn the humidifier on/off. Unit will beep once when powered on.
Mist Level: Press to cycle through Low (one LED), Medium (two LEDs), High (three LEDs).
Light: Press once to turn night light on/off. Press and hold for 2 seconds to set auto-off timer (light turns off after 30 minutes of operation).
Low Water Indicator: Red LED illuminates and unit beeps twice when water level is low. Unit will automatically shut off shortly after if not refilled.

Using Essential Oils

The built-in essential oil tray allows for aromatherapy diffusion.

1. Ensure the humidifier is turned off and unplugged.
2. Pull out the essential oil tray located on the side of the base unit.
3. Add 3-5 drops of pure essential oil onto the absorbent cotton pad inside the tray. Do not exceed 5 drops.
4. Slide the tray back into the unit securely.
5. Operate the humidifier as normal. The mist will carry the aroma into the air.

Tip: Clean the oil tray regularly to prevent oil residue buildup. Do not add oils directly to the water tank.

Maintenance & Cleaning

Regular cleaning is essential to prevent mold and mineral buildup.

1. Daily: Empty and rinse the water tank with clean water. Wipe the base with a damp cloth.
2. Weekly Deep Clean:
   • Unplug the unit. Disassemble the tank and base.
   • Fill the tank with a mixture of 1 cup white vinegar and 1 cup water. Let sit for 15-20 minutes.
   • Scrub the interior with a soft brush, then rinse thoroughly with clean water.
   • Wipe the ultrasonic mist disc (in the base) gently with a vinegar-dampened cloth. Do not submerge the base.
   • Allow all parts to air dry completely before reassembly.

CAUTION! Never use abrasive cleaners, bleach, or detergents. Always unplug before cleaning. Ensure all parts are completely dry before use.

Safety Features

Auto Shut-off: Activates when water tank is empty or removed, preventing damage to the ultrasonic module.
Low Water Indicator: Red LED and audible beep alert user to refill.
Tip-Over Protection: Unit is designed to minimize spillage if tipped, but should be placed on a stable surface.
BPA-Free Materials: All water-contact parts are made from BPA-free materials.

Regulatory Information

CE Certified: Complies with European health, safety, and environmental protection standards.
RoHS Compliant: Free of hazardous substances as per Directive 2011/65/EU.
Warranty: 2-year limited warranty from date of purchase. For warranty claims and support, retain your proof of purchase.
For support, visit www.levoit.com or contact the EU customer service line provided in your region's packaging.

Troubleshooting

Reset: Unplug the unit for 2 minutes, then plug back in to reset the electronic controls.

Service: Do not attempt to repair the unit yourself. For service, contact authorized Levoit service centers.