Levoit Humidifier Classic 150-RWH Manual

The Levoit Classic 150-RWH is a top-fill ultrasonic humidifier designed for medium to large rooms. It features a 1.5-gallon (5.5L) tank, 360° nozzle, adjustable mist output, optional night light, auto shut-off, and quiet operation. 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 Guide 7. Cleaning & Maintenance 8. Safety Features 9. Care Instructions 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Top-fill water tank, 360° adjustable mist nozzle, Control panel, Night light, Water level window, Power adapter.

Feature	Description
Top-fill design	Easy to fill directly from the top without disassembling
1.5-gallon tank	Provides up to 40 hours of continuous operation
360° mist nozzle	Adjustable direction for optimal mist distribution
Adjustable mist output	Three levels: Low, Medium, High
Optional night light	Soft blue light that can be turned on/off
Auto shut-off	Turns off automatically when water tank is empty
Quiet operation	Ultrasonic technology for whisper-quiet performance
Water level window	Allows easy monitoring of remaining water
Filter-free design	No replacement filters required
Carry handle	Easy to transport and refill

Installation & Setup

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

Remove all packaging materials from the humidifier and tank.
Place the humidifier on a flat, level surface at least 12 inches away from walls.
Fill the tank with clean, cool tap water or distilled water (recommended).
Align the tank with the base and press down gently until it clicks into place.
Plug the power adapter 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; follow these initial steps.

Fill the tank with water: Remove the tank cap and fill with clean water.
Place tank on base: Ensure it is properly seated and secure.
Plug in the unit: Connect the power adapter to the outlet.
Power on: Press the POWER button on the control panel.
Adjust settings: Use the MIST button to select desired output level.
Optional night light: Press the LIGHT button to turn on/off.

CAUTION! Use only clean, cool water. Do not use hot water or additives.

Specifications

Model: Classic 150-RWH
Tank Capacity: 1.5 gallons (5.5 liters)
Room Coverage: Up to 500 sq ft
Run Time: Up to 40 hours on low setting
Mist Output: Adjustable: 150mL/hr (Low) to 300mL/hr (High)
Noise Level: ≤ 30 dB (Quiet mode)
Power Consumption: 25W
Power Source: 120V AC, 60Hz
Dimensions: 10.2" x 7.1" x 10.6"
Weight: 4.2 lbs (empty)

Controls and Settings

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

Operation: POWER turns unit on/off. MIST cycles through Low, Medium, High output levels. LIGHT toggles night light on/off.

Settings: Adjust mist direction using the 360° nozzle. Monitor water level through the transparent window. Auto shut-off activates when tank is empty (indicator light will blink).

Operation Guide

Daily operation for optimal humidity control.

Ensure humidifier is on a flat, stable surface.
Fill tank with clean, cool water (distilled recommended).
Place tank securely on base.
Plug in power adapter.
Press POWER to turn on.
Adjust mist level using MIST button.
Direct mist nozzle away from walls and electronics.
Turn off when not in use or when refilling.

Tip: For best results, use distilled water to minimize white dust.

Cleaning & Maintenance

Regular cleaning ensures optimal performance and longevity.

Daily: Empty and rinse the tank with clean water.
Weekly: Deep clean tank and base with white vinegar solution (1:1 ratio with water).
Soak for 15-20 minutes, then scrub with soft brush.
Rinse thoroughly with clean water to remove vinegar residue.
Wipe exterior with a damp, soft cloth. Do not submerge base in water.
Allow all parts to air dry completely before reassembly.

WARNING! Unplug before cleaning. Never use abrasive cleaners or chemicals.

Safety Features

Auto Shut-Off: Activates when water tank is empty (red indicator light blinks). Overheat Protection: Built-in sensor prevents overheating. Tip-Over Protection: Automatically shuts off if unit is knocked over.

Care Instructions

Unplug before any maintenance. Use only clean, cool water. Store in a cool, dry place when not in use for extended periods.

CAUTION! Do not operate without water. Do not add essential oils or other additives directly into the water tank.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
No mist output	Empty tank/incorrect setup	Refill water tank; ensure tank is properly seated; check power connection.
Low mist output	Mineral buildup	Clean tank and transducer with vinegar solution; use distilled water.
Unit not turning on	Power issue	Check power outlet; ensure plug is securely connected; try different outlet.
Water leakage	Improper assembly	Ensure tank cap is tight; check for cracks in tank; ensure base is level.
White dust around unit	Hard water minerals	Use distilled water; clean unit regularly; wipe surfaces frequently.
Unusual noise	Debris in water	Empty and clean tank; ensure water is clean; check for foreign objects.

Reset: Unplug for 5 minutes, then restart.

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