Levoit Humidifier Classic 100 Manual

The Levoit Humidifier Classic 100 is a compact, ultrasonic cool mist humidifier designed for small to medium rooms. It features a 1-gallon (3.8L) water tank, adjustable mist output (low/medium/high), 360° nozzle, optional night light, auto shut-off when empty, and quiet operation. Ideal for improving air quality and relieving dryness. 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 Operation 6. Maintenance & Cleaning 7. Using Essential Oils 8. Safety Features 9. Care & Storage 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Water tank, base unit, mist nozzle, control panel, power adapter, optional aroma pad tray.

Feature	Description
Water Tank Capacity	1 gallon (3.8 liters)
Mist Output	Adjustable low/medium/high settings
Nozzle	360° rotatable for directional mist control
Night Light	Optional soft blue light; can be turned off
Run Time	Up to 24 hours on low setting
Auto Shut-Off	Automatically turns off when water level is low or tank is removed
Quiet Operation	Ultrasonic technology for near-silent performance
Aroma Pad Tray	Optional tray for adding essential oils (not for direct oil drops)
Filter-Free	No replacement filters required
Power Source	AC adapter (included)

Installation & Setup

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

Remove tank: Lift water tank from base unit.
Fill tank: Turn tank upside down, unscrew cap, fill with cool, clean tap or distilled water (distilled recommended to reduce white dust).
Reassemble: Screw cap tightly, place tank back on base.
Position nozzle: Adjust 360° nozzle to desired direction.
Plug in: Connect AC adapter to base and wall outlet.

WARNING! Do not place on carpets or uneven surfaces. Keep away from heat sources and electronics.

First-Time Use

Power on humidifier; follow control panel prompts.

Power: Press POWER button to turn on; default mist setting is low.
Adjust mist: Press MIST button to cycle through low, medium, high settings.
Night light: Press LIGHT button to turn on/off.
Monitor operation: Ensure mist is emitting from nozzle; check for leaks.
Auto shut-off: Unit will turn off automatically when water is empty.

CAUTION! Use only clean, cool water. Do not add oils directly into water tank.

Specifications

Model: Classic 100
Tank Capacity: 1 gallon (3.8L)
Room Coverage: Up to 250 sq ft
Mist Output: Up to 1.5L/hour on high setting
Run Time: Up to 24 hours (low), 12 hours (medium), 8 hours (high)
Noise Level: < 30 dB
Power: 24W, AC 120V, 60Hz
Dimensions: 9.5" x 9.5" x 11.5"
Weight: 3.5 lbs (empty)
Water Type: Tap or distilled (distilled recommended)

Controls and Operation

Control Panel: POWER button, MIST button (cycles low/medium/high), LIGHT button (night light on/off).

Operation Tips: Place at least 12 inches from walls and furniture. Adjust nozzle away from walls and electronics. Use distilled water to minimize white dust. Refill when water is low (indicator on tank).

Settings: Low for quiet nighttime use; Medium for general humidity; High for quick humidity boost. Night light provides soft illumination; turn off if distracting.

Maintenance & Cleaning

Regular cleaning prevents mold and mineral buildup.

Unplug and empty tank daily.
Weekly deep clean: Mix 1 cup white vinegar with 1 gallon water; fill tank halfway, shake gently, let sit 15-20 minutes. Rinse thoroughly.
Clean base: Wipe base and ultrasonic plate with soft cloth dampened with vinegar solution. Do not submerge base.
Dry completely before reassembly.

Tip: Clean more frequently if using tap water or in hard water areas.

Using Essential Oils

Optional aroma pad tray (sold separately) allows safe use of essential oils.

Remove tray: Pull out aroma pad tray from base (if equipped).
Add oil: Place 2-3 drops of essential oil onto pad (never directly into water tank).
Reinsert tray: Slide tray back into slot.
Operate as normal; mist will carry aroma.

WARNING! Do not add oils directly to water tank—can damage unit and void warranty.

Safety Features

Auto Shut-Off: Turns off when water level is low or tank is removed. Overheat Protection: Internal sensor prevents overheating. Tip-Over Protection: Unit stops if knocked over. Low Water Indicator: Visible water level on tank.

Care & Storage

When not in use: Unplug, empty and dry all parts completely. Store in original box in cool, dry place. Do not store with water in tank.

CAUTION! Never use harsh chemicals, abrasives, or submerge base in water.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © Levoit. For support, visit www.levoit.com or contact 1-888-726-8520. UL listed for safety. One-year limited warranty.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No mist output	Empty tank / Incorrect assembly	Refill tank; ensure tank is properly seated on base; check power connection.
White dust around unit	Hard water minerals	Use distilled water; clean ultrasonic plate with vinegar solution.
Unit not turning on	Power issue / Auto shut-off engaged	Check outlet; ensure tank is filled and properly placed; reset by unplugging for 1 minute.
Water leaking	Loose cap / Overfilled tank	Tighten tank cap; do not fill above MAX line; ensure tank is upright.
Unusual noise	Mineral buildup / Low water	Clean ultrasonic plate; refill tank; ensure unit is on level surface.
Weak mist	Low mist setting / Mineral blockage	Increase mist setting; clean nozzle and ultrasonic plate.

Reset: Unplug for 1 minute, then restart.

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