MOSFiATA LH-2028
MOSFiATA 3.5L Warm and Cool Mist Humidifier User Manual
Model: LH-2028
1. Introduction
Thank you for choosing the MOSFiATA 3.5L Warm and Cool Mist Humidifier. This ultrasonic humidifier is designed to improve air quality and comfort in your home or office. It features a large 3.5-liter capacity, offering both warm and cool mist options with three adjustable mist levels. Additional features include a programmable timer, a 7-color night light, and an aromatherapy function.
Please read this manual thoroughly before operating the device to ensure safe and optimal performance. Keep this manual for future reference.
2. Important Safety Instructions
To reduce the risk of fire, electric shock, or injury, always follow these basic safety precautions:
- Before initial use, ensure the protective sponge is removed from the base of the humidifier. Failure to do so may prevent the ON/OFF button from functioning correctly.
- Always unplug the humidifier from the power supply before adding water, cleaning, or moving the unit.
- Use only clean, fresh tap water or pure water in the water tank.
- Avoid water leakage when filling the tank. Do not place the humidifier in wet areas.
- The warm mist temperature at the nozzle is approximately 104℉ (40℃). Exercise caution, especially around children, as direct contact with the mist may cause discomfort.
- This humidifier is not intended to function as an environmental heater.
- Do not add essential oils directly into the water tank. Use only the designated aromatherapy box.
- Keep essential oils out of reach of children.
- The humidifier features an automatic shut-off when water levels are low, indicated by a flashing power button light.
3. Product Overview
Familiarize yourself with the components of your MOSFiATA humidifier:

Image 3.1: Front view of the MOSFiATA 3.5L Warm and Cool Mist Humidifier, showing the main unit, transparent water tank, and control panel.
Components:
- Mist Nozzle: Emits mist into the air.
- Water Tank: 3.5L capacity, transparent for easy water level monitoring.
- Base Unit: Contains the ultrasonic transducer and control electronics.
- Control Panel: Features touch buttons for ON/OFF, Mist mode, and Time/Light functions.
- Water Level Window: A vertical transparent strip on the front of the unit to view the water level.
- Aromatherapy Box: A small compartment for adding essential oils (located on the side or back of the unit, refer to image 3.3).

Image 3.2: Detailed view of the control panel and product dimensions (approximately 7.1 inches wide and 12.6 inches high).

Image 3.3: The humidifier in use, highlighting the aromatherapy box for essential oils.
4. Setup
Follow these steps for initial setup:
- Unpack: Carefully remove the humidifier from its packaging.
- Remove Protective Sponge: Locate and remove the protective foam/sponge from the base of the humidifier. This is crucial for proper operation.
- Place Humidifier: Position the humidifier on a flat, stable, and water-resistant surface. Ensure it is not placed directly on wood furniture or in wet areas.
- Fill Water Tank:

Image 4.1: Illustration of the top-fill water tank design, showing water being poured directly into the top opening.
The humidifier features a top-fill design. Remove the top cover and pour clean, fresh water directly into the water tank. Do not exceed the maximum fill line. The transparent water level window allows you to monitor the water volume.
- Connect Power: Plug the power cord into a standard 120V AC electrical outlet. The unit is now in standby mode.
5. Operation
Operate your humidifier using the touch-sensitive control panel:
5.1 Power On/Off and Mist Level Adjustment
- Power On: Touch the ON/OFF button (
) once to turn on the humidifier. It will default to Cool Mist, Low level. - Adjust Mist Level: While the humidifier is on, repeatedly touch the ON/OFF button to cycle through mist levels: Low (L), Medium (M), High (H).
- Power Off: Continue touching the ON/OFF button until the unit turns off, or press and hold for a few seconds.
5.2 Warm/Cool Mist Selection

Image 5.1: Visual representation of the warm mist (red wavy lines) and cool mist (blue snowflake) modes.
- Switch Mode: Touch the MIST button (
) to switch between Warm Mist and Cool Mist modes. - Indicator: An LED light above the MIST button will blink when in Warm Mist mode.
- Mist Emission: Allow a few minutes for the humidifier to heat or cool the water before the selected mist type is fully emitted.
5.3 Timer Function
- Set Timer: Short touch the TIME/LIGHT button (
) to set the operating timer. Available settings are 2 hours (2H), 4 hours (4H), 6 hours (6H), and 8 hours (8H). The humidifier will automatically turn off after the set time.
5.4 Night Light Function
- Activate/Deactivate: Long touch (press and hold for 3 seconds) the TIME/LIGHT button to turn the 7-color mood light ON or OFF.
5.5 Aromatherapy Function
- Add Essential Oil: Locate the aromatherapy box (refer to Image 3.3). Open the box and add a few drops of your preferred essential oil onto the aroma pad. Close the box securely.
- Important: Do not add essential oils directly into the water tank, as this can damage the unit and void the warranty.
6. Maintenance and Cleaning
Regular cleaning is essential to maintain optimal performance and prevent scale buildup or unpleasant odors.
- Daily Maintenance: Empty any remaining water from the tank and base daily. Refill with fresh water.
- Weekly Cleaning:
- Unplug the humidifier from the power outlet.
- Remove the water tank and empty it completely.
- Clean the water tank and base with a soft cloth and mild detergent. For stubborn mineral deposits, use a solution of white vinegar and water (1:1 ratio). Let it soak for 15-20 minutes, then gently scrub and rinse thoroughly.
- Ensure all parts are rinsed free of cleaning solutions before reassembly.
- Storage: If storing the humidifier for an extended period, ensure the water tank and base are completely clean and dry. Store in a cool, dry place.
7. Troubleshooting
If you encounter issues with your humidifier, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Humidifier does not turn on. | Protective sponge not removed from base. No power. | Ensure the protective sponge is removed. Check power connection. |
| No mist or weak mist output. | Low water level. Mineral buildup. Obstruction in mist nozzle. | Refill water tank. Clean the transducer and base. Check for nozzle obstruction. |
| Warm mist is not hot. | Normal operation. Unit needs time to heat. | The warm mist temperature at the nozzle is approximately 104℉ (40℃). Allow a few minutes after switching to warm mode for the mist to reach its temperature. |
| Unpleasant odor from humidifier. | Stagnant water. Mineral buildup. | Clean the water tank and base thoroughly. Use fresh water daily. |
| Humidification effect is poor. | Room not sealed. Humidifier too small for room size. | Ensure doors and windows are closed. This humidifier is suitable for rooms 15-25㎡. |
| Power button light flashing. | Water shortage detected. | Refill the water tank. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | MOSFiATA |
| Model Name | cool mist humidifier |
| Item Model Number | LH-2028 |
| Water Tank Capacity | 3.5 Liters (0.9 Gallons) |
| Max Working Time | Up to 35 hours (at Low mist level) |
| Operation Mode | Ultrasonic, Vaporizer |
| Special Feature | Warm & Cool Mist, Timer, 7-Color Night Light, Aromatherapy |
| Voltage | 120 Volts (AC) |
| Item Weight | 1.3 Kilograms (2.86 pounds) |
| Package Dimensions | 14.06 x 9.02 x 7.83 inches |
| Applicable Room Area | 15 ~ 25㎡ (161 ~ 269 sq ft) |
| UPC | 793610633620 |
9. Warranty and Support
Specific warranty details are not provided in this manual. For warranty information, technical support, or customer service inquiries, please contact MOSFiATA customer support through their official channels or the retailer where the product was purchased.