Introduction
The LEVOIT 6-Liter OasisMist Smart Warm & Cool Mist Humidifier is designed to provide a fast, even, healthy, and safe humidification experience for your home and bedroom. Featuring VortexMist Technology, it offers customized humidity control and a long runtime. For optimal performance and health, distilled or purified water is preferred.

The LEVOIT 6L Smart Warm and Cool Mist Humidifier, showcasing its sleek design and digital display, alongside its companion smartphone application for smart control.
What's Included
- 1 6-Liter Smart Warm & Cool Mist Humidifier
- 1 User Manual
- 1 Quick Start Guide
- 1 Cleaning Brush
- 1 Aroma Pad
- 2 Absorption Pads (1 Pre-Installed)
- 1 Water Filter Sponge
Setup
Placement
Place the humidifier on a firm, flat, and waterproof surface. Ensure it is positioned away from walls and furniture to allow for optimal mist dispersion. The effective range for humidification is 215–430 ft² / 20–40 m².
Filling the Water Tank
The 6-liter water tank features an easy top-fill design, simplifying the refilling process. Simply remove the top cover and pour distilled or purified water directly into the tank. Avoid overfilling past the MAX line. The large capacity allows for up to 60 hours of continuous operation, reducing the frequency of refills.

Visual guide demonstrating the easy top-fill method, the convenient handle for portability, and the wide opening for simple cleaning of the humidifier's water tank.
Essential Oil Tray
To enjoy aromatherapy, locate the essential oil tray on the side of the humidifier. Add 2-3 drops of your favorite essential oil onto the aroma pad in the tray. Do not add essential oils directly into the water tank, as this can damage the unit. Close the tray securely after adding oils.
Operating Instructions
Control Panel Overview
The humidifier features a convenient LED display and touch controls for easy operation. The display shows the current humidity percentage in the room.
Mist Levels
Adjust the mist output to your preference using the mist control button. Cycle through low, medium, and high mist settings. The dual 360° rotating nozzle allows for easy adjustment of mist direction.
Warm & Cool Mist
The humidifier offers both warm and cool mist options. The warm mist feature ensures a healthier humidifying process by reducing white dust from water and maintains a safe temperature between 40℃ and 60℃. The double duct design provides quicker and more even humidification.

An illustration detailing the dual mist output, offering both cool and warm mist options for comprehensive humidification.
Auto Mode
Activate Auto Mode via the control panel or the VeSync app. In this mode, the humidifier automatically adjusts the mist level to maintain your target humidity level, typically between 40% and 60% RH, ensuring seamless comfort.

A woman and child enjoying a comfortable living space, with the humidifier operating in Auto Mode to maintain optimal humidity levels.
Sleep Mode
The upgraded triple noise reduction technology ensures whisper-quiet operation, as low as 26dB, making it ideal for bedrooms. Use Sleep Mode to turn off the display lights for an undisturbed night's rest.
Smart Controls & App
Manage your humidifier remotely using the VeSync app. The app allows you to turn the device on/off, set timers, create schedules, and personalize your humidity settings from anywhere. It also supports voice control via Alexa and Google Assistant.

A close-up of a smartphone displaying the VeSync app, illustrating the smart control features for the humidifier, including power, timer, and scheduling options.
Maintenance
Cleaning
Regular cleaning is crucial for the well-being of your family and to prolong the life of your humidifier. The wide opening of the tank ensures easy access for thorough cleaning. After each use, it is advisable to clean and thoroughly dry the humidifier.
Filter & Aroma Pad Replacement
The humidifier uses a Water Filter Sponge to capture fine impurities and particles, improving humidifying efficiency. This sponge generally lasts 1 month depending on water hardness. Mineral Absorption Pads (10-pack) prevent stubborn mineral buildup and increase humidification efficiency, typically lasting 2-4 weeks depending on water hardness. Aroma Pads help emit a stronger fragrance and protect the fragrance box, and are suggested to be changed every 4 weeks for better performance.
- Water Filter Sponge: Search B09ZY9N6PD on Amazon.
- Mineral Absorption Pads: Search B09X9PLMYC or Levoit humidifier replacement filter on Amazon.
- Aroma Pads: Search B0B8MD45FB or Levoit aroma pads for more information on Amazon.
Troubleshooting
For common issues, refer to the detailed troubleshooting section in the full user manual. Ensure proper cleaning and maintenance as many issues can be resolved through these steps.
Specifications
| Brand | LEVOIT |
| Model Name | OasisMist 600S |
| Item Model Number | LUH-O601S-KUS |
| Product Dimensions | 10.8"D x 6"W x 13.9"H |
| Item Weight | 5.5 Pounds |
| Water Tank Capacity | 6 Liters |
| Runtime | Up to 60 Hours |
| Effective Range | 215–430 ft² / 20–40 m² |
| Operation Mode | Ultrasonic |
| Noise Level | As low as 26dB |
| Control Method | App, Digital Display |
| Special Features | Digital Display, Remote Control, Schedule, Aroma Diffuser, Humidistat |
Warranty and Support
For detailed warranty information and customer support, please refer to the official user manual provided with your product or visit the LEVOIT website. You can also find the User Manual (PDF) here.





