1. Introduction
Thank you for choosing the Sejoy Air Humidifier Aroma Diffuser. This device combines the benefits of a humidifier and an aroma diffuser, featuring ultrasonic cool mist technology, an 8-hour timer, and 17 atmospheric lights. Designed for household use, it helps improve air quality and create a pleasant environment. Please read this manual thoroughly before use to ensure proper operation and maintenance.
2. Safety Information
- This device is a diffuser and does not require cotton swabs. You can directly add non-corrosive essential oils to diffuse aroma.
- Always use a 5V2A power adapter for the USB cable. Using an adapter with different specifications may damage the circuit.
- Ensure the water level in the tank remains below the 'MAX' line. Do not allow water to enter the ventilation duct, as this can cause circuit damage.
- It is recommended to use essential oils specifically designed for diffusers.
- Keep the device out of reach of children and pets.
- Do not place the device on uneven or unstable surfaces.
- Unplug the device from the power source before cleaning or refilling.
3. Package Contents
Please check the package for the following items:
- Sejoy Air Humidifier Aroma Diffuser × 1
- USB Cable × 1
- Instructions for Use × 1
4. Product Overview
The Sejoy Air Humidifier Aroma Diffuser features a compact design with an LED touch screen for easy control.
5. Setup Instructions
- Unpack: Carefully remove the diffuser and all accessories from the packaging.
- Placement: Place the diffuser on a flat, stable, and water-resistant surface, away from direct sunlight or heat sources.
- Connect Power: Plug the provided USB cable into the diffuser's power port, then connect the other end to a 5V2A USB power adapter (not included). Plug the adapter into a wall outlet.
- Fill Water Tank: Gently remove the top cover of the diffuser. Fill the water tank with clean tap water. Ensure the water level does not exceed the 'MAX' line indicated inside the tank.
- Add Essential Oils (Optional): If desired, add 2-3 drops of your preferred non-corrosive essential oil directly into the water tank.
- Replace Cover: Securely place the top cover back onto the diffuser.
6. Operating Instructions
The diffuser is controlled via its large LED touch screen.
- Power On/Off: Touch the Power icon (
) on the touch screen to turn the device on or off. - Mist Control: Touch the Mist icon () to start or stop the mist output. The device features an automatic shut-off function when the water level is too low (waterless auto-off).
- Lighting Control: Touch the Light icon () to cycle through 17 different lighting modes, including 16 fixed colors and one gradient color. The light can also be turned off completely.
- Timer Setting: Touch the Timer icon () to set the operating duration. Options typically range from 1 to 8 hours (e.g., 1H, 2H, 3H, 4H, 5H, 6H, 7H, 8H). Continuous pressing will cycle through the available timing options. An icon will appear above the time display when the timer is active.
- Time Display Adjustment: Use the "+" and "-" buttons on the touch screen to adjust the current time displayed on the device.
7. Maintenance
Regular cleaning ensures optimal performance and extends the lifespan of your diffuser.
- Daily Cleaning: After each use, empty any remaining water from the tank. Wipe the inside of the tank and the lid with a clean, soft cloth.
- Weekly Cleaning:
- Unplug the diffuser from the power source.
- Remove the top cover.
- Pour out any remaining water.
- Add a small amount of mild dish soap to the water tank and fill it halfway with warm water.
- Gently scrub the inside of the tank with a soft brush or sponge.
- Rinse thoroughly with clean water, ensuring no soap residue remains.
- Wipe the ultrasonic plate (the small disc at the bottom of the tank) with a cotton swab dipped in white vinegar to remove mineral buildup. Rinse gently.
- Wipe all surfaces dry with a clean cloth before reassembling.
- Important: Do not immerse the entire diffuser unit in water. Avoid using harsh detergents or abrasive cleaners.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist output | Low water level; ventilation duct blocked; incorrect power adapter. | Refill water to appropriate level; ensure ventilation duct is clear; use a 5V2A power adapter. |
| Device not turning on | No power connection; faulty power adapter. | Check USB cable connection; ensure power adapter is working and plugged in. |
| Unusual noise (hissing/whistling) | Improper water level; unstable placement; mineral buildup on ultrasonic plate. | Ensure water level is correct; place on a flat, stable surface; clean the ultrasonic plate as per maintenance instructions. This device is designed for low noise operation (<36dB). |
| Light not working | Light function turned off; setting issue. | Touch the Light icon on the touch screen to activate or cycle through light modes. |
9. Specifications
| Feature | Detail |
|---|---|
| Brand Name | Sejoy |
| Type | Ultrasonic Humidifier / Aroma Diffuser |
| Operation Method | Keyboard Type (Touch Control) |
| Power Type | USB |
| Voltage | 5V |
| Power (W) | 5W |
| Water Tank Capacity | 400ml (<1L) |
| Mist Outlet Quantity | One |
| Atomization Amount | 15-20ml/h |
| Timing Function | Yes (1-8 hours) |
| Water-shortage Power-off Protection | Yes |
| Humidity Control | Touch Control |
| Function | Humidification, Aroma Diffusion, Ultrasonic Sterilize |
| Noise Level | <36dB |
| Coverage Area | < 10 M² (25-30m² as per image) |
| Installation | Tabletop / Portable |
| Certification | CE |
| Use | Household |
| Shape | Classic Columnar |
| Origin | Mainland China |
10. User Tips
- For optimal quiet operation, ensure the diffuser is placed on a stable, flat surface and the water level is maintained correctly. This model is designed for low noise operation, typically below 36dB, making it suitable for bedrooms.
- Experiment with different essential oils to find your preferred aroma. Always use non-corrosive essential oils to prevent damage to the unit.
- Utilize the 1-8 hour timer function for convenience, especially for sleep, yoga sessions, or when you want the device to turn off automatically.
- The adjustable 17-color lighting can be turned off completely if you prefer a dark room for undisturbed sleep.
- Regularly clean the device, especially the ultrasonic plate, to prevent mineral buildup and maintain efficient mist production.
11. Warranty and Support
Your Sejoy Air Humidifier Aroma Diffuser is covered by a manufacturer's warranty against defects in materials and workmanship. For specific warranty details, claims, or technical support, please refer to the seller's policy or contact their customer service directly. Keep your purchase receipt as proof of purchase.
