Levoit Humidifier Dual 200S Pro Manual

The Levoit Dual 200S Pro is a smart ultrasonic humidifier featuring dual 2.5L tanks, a 360° rotating nozzle, warm & cool mist modes, essential oil diffuser function, adjustable mist levels, built-in humidity sensor, auto mode, timer, sleep mode, and remote control via the VeSync app. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting to Wi-Fi & App 7. Operation Modes 8. Maintenance & Cleaning 9. Safety Features 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Dual 2.5L removable water tanks, 360° rotating nozzle, Control Panel, Essential Oil Tray, Built-in Humidity Sensor, Air Inlet Filter.

Feature	Description
Dual Water Tanks	Two 2.5L tanks for extended runtime
360° Rotating Nozzle	Adjustable mist direction
Warm & Cool Mist	Selectable mist temperature
Essential Oil Diffuser	Built-in tray for aromatherapy
Adjustable Mist Levels	9 levels of mist output
Built-in Humidity Sensor	Monitors room humidity
Auto Mode	Maintains set humidity automatically
Timer	1-12 hour programmable timer
Sleep Mode	Quiet operation with display off
VeSync App Control	Remote control via smartphone

Installation

Unpack and inspect contents. Place on flat, stable surface away from walls.

Remove water tanks: Lift tanks from base.
Fill tanks: Use clean, cool tap water; do not exceed MAX line.
Replace tanks: Align tanks with base and press down until seated.
Connect to power: Plug power adapter into outlet.

WARNING! Use only clean, cool water. Do not use hot water or additives unless specified. Ensure unit is on a level surface.

First-Time Setup

Power on humidifier; follow initial setup prompts.

Select mode: Press MODE button to choose between Cool, Warm, or Auto.
Set humidity: Use +/- buttons to set desired humidity level (40%-80%).
Adjust mist level: Press MIST button to select output level (1-9).
Connect to app: Download VeSync app and follow pairing instructions.

CAUTION! Do not place near heat sources or electronics. Keep out of reach of children.

Specifications

Model: Dual 200S Pro
Water Tank Capacity: 2 x 2.5L (5L total)
Coverage Area: Up to 500 sq ft
Mist Output: Up to 500 mL/hr
Mist Types: Warm mist (up to 140°F), Cool mist
Noise Level: ≤ 30 dB in Sleep Mode
Power Consumption: 30W max
Power Source: 120V AC, 60Hz
Operating Humidity: 40% - 80% RH
Dimensions: 10.2" x 7.1" x 10.6"

Controls and Settings

Access controls via front panel or VeSync app. Front Panel: POWER, MODE, MIST, TIMER, SLEEP, +/- buttons.

Remote (App): All front panel functions plus scheduling, humidity history, and device grouping.

Modes: COOL (default), WARM, AUTO (maintains set humidity). Mist Levels: 1-9 (9 is highest). Timer: 1-12 hours. Sleep Mode: Turns off display and reduces noise. Essential Oils: Add 3-5 drops to tray (do not exceed).

Connecting to Wi-Fi & App

Connect to VeSync app for smart features.

Download VeSync app from App Store or Google Play.
Create account or log in.
Press and hold Wi-Fi button on humidifier for 3 seconds until indicator flashes.
Follow in-app instructions to connect to your 2.4GHz Wi-Fi network.

Tip: Ensure humidifier is within range of Wi-Fi router during setup.

Operation Modes

Supports multiple operation modes for customized comfort.

Cool Mist: Press MODE to select; uses ultrasonic technology.
Warm Mist: Provides warm, soothing mist; ideal for colder rooms.
Auto Mode: Uses built-in sensor to maintain set humidity automatically.
Manual Mode: Set mist level and humidity manually.
Sleep Mode: Press SLEEP for quiet operation and display off.
Timer: Set 1-12 hour operation timer.
Essential Oils: Add oils to tray for aromatherapy (optional).

WARNING! Do not add essential oils directly to water tank. Use designated tray only.

Maintenance & Cleaning

Regular cleaning prevents mold and mineral buildup.

Daily: Refill tanks with fresh water.
Weekly: Clean tanks with mild soap and water; rinse thoroughly.
Monthly: Descale with white vinegar solution (1:1 with water).
As needed: Replace air inlet filter (every 3-6 months).

CAUTION! Unplug before cleaning. Never immerse base in water. Dry all parts completely before reassembly.

Safety Features

Auto Shut-off: Turns off when tanks are empty or removed. Tip-over Protection: Shuts off if unit tilts >45°. Overheat Protection: Prevents overheating in warm mist mode. Child Lock: Enable in app to lock controls.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
No mist output	Empty tanks/low water	Refill tanks; ensure properly seated.
Weak mist	Mineral buildup	Clean tank and transducer with vinegar solution.
Unit not powering on	Power connection	Check power outlet; ensure adapter is plugged in securely.
Wi-Fi connection failed	Network issues	Ensure 2.4GHz network; move closer to router; reset Wi-Fi setup.
Unusual noise	Foreign object/vibration	Check for debris; ensure unit is on level surface.
Error code on display	Various faults	Refer to manual error code chart; unplug for 5 minutes then retry.

Reset: Hold POWER and MODE for 5 seconds to factory reset.

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