Levoit Humidifier LUH-O601S-KUS Manual

The Levoit LUH-O601S-KUS is a 6-liter Ultrasonic Cool Mist Humidifier with a 360° nozzle, essential oil diffuser tray, night light, auto mode, sleep mode, and touch control panel. It features a large top-fill design, quiet operation, and a built-in humidity sensor for optimal comfort. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation & Setup 3. Specifications 4. Controls and Operation 5. Using Essential Oils 6. Maintenance & Cleaning 7. Care Instructions 8. Regulatory Information 9. Troubleshooting

Features at a Glance

Key components: 6L water tank, ultrasonic mist generator, 360° rotating nozzle, essential oil tray, touch control panel, night light, humidity sensor, and filter (if included).

Feature	Description
Water Tank Capacity	6 liters (1.6 gallons)
Mist Output	Up to 500 ml/hr, adjustable
Runtime	Up to 60 hours on low setting
Control Panel	Touch buttons with LED display
Modes	Auto, Sleep, Manual (Low/Med/High)
Nozzle	360° rotating for directional mist
Essential Oil Tray	For aromatherapy diffusion
Night Light	Color-changing, can be turned off
Humidity Sensor	Auto mode adjusts mist based on room humidity
Power Source	120V AC, 60Hz

Installation & Setup

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

Remove the water tank: Lift the tank from the base.
Fill with water: Turn tank upside down, open the cap, and fill with clean, cool tap or distilled water (distilled recommended to reduce white dust).
Replace the tank: Place tank back on base, ensuring it is seated properly.
Connect to power: Plug the power adapter into the base unit and then into a wall outlet.
Power on: Press the Power button on the control panel.

WARNING! Do not use with essential oils directly in the water tank. Use only the provided essential oil tray. Do not operate without water.

Specifications

Model: LUH-O601S-KUS
Tank Capacity: 6L (1.6 gal)
Coverage Area: Up to 505 sq ft
Mist Output: 300-500 ml/hr (adjustable)
Noise Level: ≤ 30 dB (Sleep Mode)
Power Consumption: 25W
Input Voltage: 120V AC, 60Hz
Dimensions: 11.8" x 7.3" x 11.8"
Weight: 5.7 lbs (empty)
Water Type Recommended: Distilled or demineralized water

Controls and Operation

Touch Control Panel: POWER, MIST LEVEL (Low/Med/High), MODE (Auto/Sleep/Manual), TIMER (1-12 hrs), NIGHT LIGHT, HUMIDITY DISPLAY.

Operation Modes:

Auto Mode: Humidifier automatically adjusts mist output based on the built-in humidity sensor to maintain a preset comfort level.
Sleep Mode: Display dims, night light turns off, and unit operates at the quietest setting.
Manual Mode: Manually set mist output to Low, Medium, or High.

Timer: Set for 1-12 hours; unit will automatically turn off.

Night Light: Press to cycle through colors or turn off.

Using Essential Oils

This unit includes a dedicated essential oil tray.

Ensure the humidifier is off and unplugged.
Pull out the essential oil tray located on the side of the base.
Add 3-5 drops of 100% pure essential oil onto the cotton pad inside the tray (or directly into the tray if no pad).
Slide the tray back into the slot.
Operate the humidifier as normal. The mist will carry the aroma.

CAUTION! Never add essential oils, fragrances, or chemicals directly into the water tank or base, as this can damage the unit and void the warranty.

Maintenance & Cleaning

Regular cleaning prevents mold and mineral buildup.

Daily/Weekly:

Unplug the unit.
Empty any remaining water from the tank and base.
Rinse the tank with clean water. Wipe the base with a damp cloth.
Let all parts air dry completely before reassembly.

Deep Cleaning (Every 1-2 weeks):

Mix a solution of 1 cup white vinegar with 1 cup water.
Pour into the water tank, swish, and let sit for 15-20 minutes.
Use a soft brush to clean the tank interior and the transducer (silver disk) in the base.
Rinse thoroughly with clean water until vinegar smell is gone.
Dry completely.

Care Instructions

Unplug before any maintenance. Use only clean, cool water. Do not submerge the base in water.

CAUTION! Do not use harsh chemicals, detergents, or abrasives. Do not operate in an enclosed space where moisture can accumulate on surfaces. Keep out of reach of children.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
No mist output	Low water, mineral buildup	Fill tank with water. Clean transducer with vinegar solution.
White dust around unit	Minerals in hard water	Use distilled or demineralized water. Clean area regularly.
Unit not turning on	No power, not plugged in	Check power outlet and connection. Ensure tank is properly seated.
Water leakage	Tank cap not tight, crack in tank	Ensure cap is sealed tightly. Inspect tank for damage.
Unusual noise	Low water level, debris in base	Refill water tank. Clean base and check for obstructions.
Display not working	Power issue	Unplug for 60 seconds, then plug back in. Reset the unit.

Reset: Unplug unit for 5 minutes, then restart.

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