Levoit Humidifier OasisMist 1000S Manual

The Levoit OasisMist 1000S is a smart ultrasonic humidifier with a 1-gallon (3.8L) tank capacity, designed for medium to large rooms. It features adjustable mist output (up to 500mL/hr), a 360° nozzle, essential oil tray, night light, auto mode, timer (1-12 hours), and smart app control via VeSync. It operates quietly (<30dB) and includes a built-in humidity sensor, filter indicator, and child lock. 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. Smart App Connection 7. Operation Modes 8. Maintenance & Cleaning 9. Safety Information 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Water tank, base unit, mist nozzle, control panel, essential oil tray, power adapter.

FeatureDescription
Water Tank Capacity1 gallon (3.8 liters)
Mist OutputAdjustable up to 500mL per hour
360° NozzleRotatable for directional mist control
Essential Oil TrayFor aromatherapy (use water-soluble oils only)
Night LightAdjustable brightness with on/off option
Auto ModeAutomatically adjusts mist based on room humidity
TimerProgrammable from 1 to 12 hours
Smart App ControlVia VeSync app (iOS/Android)
Quiet Operation<30dB for undisturbed sleep
Child LockPrevents accidental button presses

Installation & Setup

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

  1. Remove tank: Lift tank from base and remove the cap.
  2. Fill with water: Use cool, clean tap or distilled water (max fill line).
  3. Replace cap and tank: Securely tighten cap; place tank back on base.
  4. Connect power: Plug the adapter into the base and then into a 120V AC outlet.
  5. Position nozzle: Rotate 360° nozzle to desired direction.

WARNING! Do not use with damaged cord or plug. Ensure hands are dry when handling.

First-Time Use

Power on the humidifier; the display will illuminate.

  1. Set humidity target: Press HUMIDITY button to set desired level (40%-60% recommended).
  2. Select mist level: Use MIST button to choose Low, Medium, High, or Auto.
  3. Set timer: Press TIMER to set auto-off duration (1-12 hours).
  4. Enable night light: Press LIGHT button to adjust or turn off.
  5. Add essential oils (optional): Place a few drops in the tray—do not add directly to water tank.

CAUTION! Use only water-soluble essential oils. Avoid overfilling the tray.

Specifications

Controls and Settings

Control Panel: POWER, MIST (Low/Med/High/Auto), HUMIDITY (40%-80%), TIMER (1-12h), LIGHT (Brightness/Off), CHILD LOCK.

Remote (if included): POWER, MIST, HUMIDITY, TIMER, LIGHT, LOCK.

Mist Settings: Low (quiet), Medium (balanced), High (max output), Auto (adjusts based on sensor). Humidity Control: Set target humidity; unit maintains level automatically. Timer: Set auto shut-off from 1 to 12 hours. Night Light: Adjust brightness or disable. Child Lock: Press and hold LOCK for 3 seconds to enable/disable.

Smart App Connection

Connect to VeSync app for remote control and scheduling.

  1. Download VeSync app from App Store or Google Play.
  2. Create account and log in.
  3. Press and hold Wi-Fi button on humidifier for 5 seconds until indicator flashes.
  4. Follow in-app instructions to connect to your 2.4GHz Wi-Fi network.
  5. Once connected, control settings, create schedules, and monitor humidity from your phone.

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

Operation Modes

Supports manual and automatic operation.

  1. Manual Mode: Select Low, Medium, or High mist output manually.
  2. Auto Mode: Unit uses built-in sensor to adjust mist to maintain target humidity.
  3. Sleep Mode: Dims display, reduces noise, and operates at lowest setting.
  4. Timer Mode: Set to turn off after 1-12 hours; unit beeps once before shutting down.
  5. Aromatherapy Mode: Add oils to tray; mist carries scent (run on Low or Medium).

WARNING! Do not run without water. Always use clean water to prevent mineral buildup.

Maintenance & Cleaning

Regular cleaning prevents mold and mineral deposits. Unplug before cleaning.

  1. Daily: Wipe exterior with a dry, soft cloth.
  2. Weekly: Empty and rinse tank; clean base with a soft brush and white vinegar solution (1:1 water/vinegar).
  3. Monthly: Deep clean tank and base with vinegar solution; soak for 20 minutes, then rinse thoroughly.
  4. Filter: Replace demineralization filter every 1-2 months or as indicated (optional).
  5. Storage: Empty completely, dry all parts, and store in a cool, dry place.

CAUTION! Never submerge base in water. Do not use abrasive cleaners.

Safety Information

Read all instructions before use. Keep out of reach of children.

WARNING! Risk of electric shock if misused. Do not disassemble.

Regulatory Information

FCC Part 15: This device complies with Class B digital device limits. Any changes not approved may void user authority. ICES-003: Complies with Canadian standards. Copyright © 2023 Levoit. All trademarks belong to Vesync Co., Ltd. For support, visit www.levoit.com or contact 1-866-376-0312.

Troubleshooting

SymptomPossible CauseCorrective Action
No mist outputEmpty tank or low waterRefill tank; ensure cap is tight.
Weak mistMineral buildupClean tank and ultrasonic plate with vinegar.
Unit not powering onLoose plug or outlet issueCheck power connection; try different outlet.
Error code E1Water tank not seatedRemove and reattach tank properly.
Wi-Fi not connectingNetwork or signal issueEnsure 2.4GHz network; move closer to router.
Unusual noiseDebris in waterEmpty, clean, and refill with fresh water.
Leaking waterCracked tank or loose capInspect for damage; ensure cap is tight.

Reset: Unplug for 60 seconds, then restart. For app issues, reinstall VeSync.

Service: 1-866-376-0312; [email protected]; www.levoit.com

Levoit Humidifier OasisMist 1000S Manual © - All Rights Reserved 2025