Introduction
The LEVOIT Ultrasonic Cool Mist Humidifier Diffuser (Model LV400CH) is a versatile 3-in-1 device designed to improve air quality in your home. It functions as a humidifier, a vaporizer, and an aroma diffuser. This unit features a double filtration system using activated carbon and ceramic to purify water and air, helping to combat dry air and potential bacteria. With its whisper-quiet operation and large 4-liter capacity, it provides continuous mist for 20 to 30 hours, making it ideal for bedrooms, living rooms, and nurseries.
Figure 1: LEVOIT LV400CH Ultrasonic Cool Mist Humidifier.
Package Contents
Please check the package contents carefully. If any items are missing or damaged, please contact customer support.
- 1 x LEVOIT Ultrasonic Cool Mist Humidifier LV400CH
- 3 x Aroma Pads (1 Pre-installed)
- 1 x User Manual
Figure 2: All items included in the product packaging.
Product Features
The LEVOIT LV400CH Humidifier is equipped with several features designed for optimal performance and user convenience:
- Large 4-Liter Capacity: Allows for 20 to 30 hours of continuous operation.
- Whisper-Quiet Operation: Ultrasonic air diffusion produces less than 36 dB of noise.
- Two-Stage Filtration: Activated carbon filters purify air, and ceramic filters purify water.
- Aromatherapy Function: Integrated aroma box for essential oils.
- One-Button Control: Simple operation for mist levels and night light.
- 360° Mist Nozzle: Adjustable mist direction.
- Waterless Auto Shut-off: Safety feature to prevent damage when water runs out.
Figure 3: Key features of the LV400CH Humidifier.
Figure 4: Benefits of using the LEVOIT Humidifier.
Setup
Follow these steps to set up your LEVOIT Humidifier for first use:
- Unpack: Carefully remove all packaging materials and place the humidifier on a flat, stable, and water-resistant surface.
- Remove Water Tank: Lift the water tank from the base.
- Fill Water Tank: Unscrew the water tank cap. Fill the tank with clean, cool water. Both distilled or tap water can be used. Ensure the water tank is correctly sealed after filling.
- Place Tank on Base: Carefully place the filled water tank back onto the humidifier base, ensuring it is seated properly.
- Connect Power: Plug the power cord into a suitable electrical outlet (AC 120V / 60Hz).
Note: Water may spill if the humidifier is moved while water is in the tank. Do not pick up or shake the humidifier while it is operating.
Figure 5: Steps for refilling the water tank.
Operating Instructions
The LEVOIT LV400CH Humidifier features simple one-button control.
- Power On/Off: Press the power button (⏻) to turn the humidifier on or off.
- Adjust Mist Level: Press the mist level button (⏻) repeatedly to cycle through low and high mist output settings. The maximum mist output is 200ml/h.
- Night Light: Press the night light button (💡) to turn the night light on or off.
- Aromatherapy: To use the aromatherapy function, add a few drops of essential oil to the aroma pad located in the aroma box on the base of the unit. Do not add essential oils directly into the water tank.
Figure 6: One-button control for mist and night light.
Figure 7: Using the aromatherapy function.
Figure 8: Quiet ultrasonic diffusion for peaceful environments.
Maintenance and Cleaning
Regular cleaning is essential to ensure optimal performance and extend the product's lifetime. It is recommended to clean the humidifier at least once a week.
Cleaning the Water Tank and Base:
- Unplug the humidifier and remove the water tank.
- Empty any remaining water from the tank and base.
- Wipe the inside of the water tank and the base with a soft, damp cloth. For mineral buildup, use a descaling solution or a mixture of white vinegar and water (1:1 ratio). Let it soak for 15-20 minutes, then rinse thoroughly.
- Ensure all parts are completely dry before reassembling.
Filter Maintenance:
The LV400CH features a two-stage filtration system with activated carbon and ceramic filters. These filters are designed to purify the water and air. While the filters are generally long-lasting, inspect them periodically for excessive buildup. Clean or replace as necessary according to the full user manual.
Figure 9: The two-stage filtration system.
Troubleshooting
If you encounter any issues with your humidifier, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or low mist output. | Water tank empty; mineral buildup on transducer; air outlet blocked. | Refill water tank; clean transducer with vinegar solution; ensure air outlet is clear. |
| Unusual noise. | Water level too low; unit not on a flat surface; foreign object in base. | Refill water tank; place on a stable, flat surface; check and remove any foreign objects. |
| Water leakage. | Water tank cap not tightened; unit moved while operating. | Ensure water tank cap is securely tightened; avoid moving the unit when filled with water. |
For more detailed troubleshooting, please refer to the complete user manual or contact LEVOIT customer support.
Specifications
| Specification | Detail |
|---|---|
| Brand | LEVOIT |
| Model Name | LV400CH |
| Voltage | AC 120V / 60Hz |
| Rated Power | 25W |
| Water Tank Capacity | 4L (1.05 gal) |
| Max Moisture Capacity | 200ml/h |
| Operation Time | 20-30 hours |
| Filter Type | Activated Carbon, Ceramic |
| Control Method | Touch |
| Product Dimensions | 9.84 x 6.18 x 6.18 inches |
| Item Weight | 3.02 pounds |
Figure 10: Product dimensions.
Warranty and Support
LEVOIT provides a 1-year buyer assurance for this product, with the option of extending it by 1 more year. You also receive lifetime support from LEVOIT.
For any questions, concerns, or support needs, please contact LEVOIT customer service:
- Phone: (888)720-8520
- Email: support@levoit.com
Please have your model number (LV400CH) and purchase information ready when contacting support.
