HOL-507ERT
FYDTOP Anti-Gravity Water Drop USB Humidifier
Model: HOL-507ERT
Introduction
Thank you for purchasing the FYDTOP Anti-Gravity Water Drop USB Humidifier. This innovative device combines advanced atomization technology with a unique anti-gravity visual effect to enhance your indoor air quality and create a calming atmosphere. Designed for ease of use and safety, it features an 800ml water tank, smart LED display, and dual power-off protection. Please read this manual thoroughly before use to ensure proper operation and maintenance.

Image: The FYDTOP Anti-Gravity Water Drop USB Humidifier, showcasing its unique visual effect.
Safety Precautions
- Always place the humidifier on a stable, flat surface.
- Do not immerse the unit in water or other liquids.
- Unplug the humidifier before filling, cleaning, or moving it.
- Do not block the mist outlet or air inlet.
- Keep out of reach of children and pets.
- Use only clean tap water or distilled water. Do not add essential oils directly into the water tank as this may damage the unit.
- If the unit emits an unusual smell or sound, unplug it immediately.
- The humidifier features dual power-off protection to prevent dry burning.
Package Contents
Please check the package contents upon opening:
- 1 x FYDTOP Anti-Gravity Water Drop USB Humidifier
- 1 x USB Type-C Data Cable
- 1 x User Manual
Product Overview
Familiarize yourself with the components of your humidifier:
- Mist Outlet: Where the humidified air is released.
- Water Tank: Holds up to 800ml of water.
- LED Digital Display: Shows time and operational status.
- Control Button: For power and mode selection.
- USB Type-C Port: For power input.
- Anti-Skid Mat: Located at the base for stability.

Image: Detailed views of the humidifier's components including the mist outlet, material, base, and charging port.
Setup
- Placement: Place the humidifier on a flat, stable, and water-resistant surface away from direct sunlight or heat sources.
- Fill Water Tank: Carefully remove the top section of the humidifier. Fill the 800ml water tank with clean tap water or distilled water. Do not exceed the MAX fill line. Replace the top section securely.
- Connect Power: Insert the USB Type-C cable into the humidifier's Type-C port and connect the other end to a compatible USB power adapter (5V/5W recommended, not included) or a USB port on a computer.

Image: Connecting the USB Type-C power cable to the humidifier.
Operating Instructions
- Power On/Off: After connecting power and filling the tank, press the control button located on the top of the humidifier to turn it on. The LED display will light up, and mist will begin to emit. Press the button again to turn it off.
- Mode Selection: The humidifier offers dual humidification modes.
- Continuous Spray Mode: Provides consistent and effective humidification. This is the default mode upon power-on.
- Light Mode: Activates a soft ambient light, enhancing the visual anti-gravity effect.
- LED Display: The intelligent LED display shows real-time information, including the current time.
- Automatic Shut-off: The humidifier is equipped with an 8-hour timer and automatic shut-off protection. It will automatically turn off when the water level is low or after 8 hours of continuous operation to prevent dry burning and ensure safety.

Image: Operating the humidifier using the one-button switch design.
Maintenance
Regular cleaning is essential for optimal performance and hygiene.
- Daily Cleaning:
- Unplug the humidifier and empty any remaining water from the tank.
- Wipe the inside of the water tank and the mist outlet with a soft, damp cloth.
- Refill with fresh water before next use.
- Weekly Cleaning (Descaling):
- Unplug the unit and empty the water tank.
- Pour 1-2 tablespoons of white vinegar into the water tank and let it sit for 30 minutes to loosen mineral deposits.
- Gently scrub the inside of the tank with a soft brush or cloth.
- Rinse the tank thoroughly with clean water until the vinegar smell is gone.
- Wipe down the exterior of the unit with a soft, dry cloth.
- Storage: If storing the humidifier for an extended period, ensure it is clean and completely dry. Store it in a cool, dry place.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or weak mist | Low water level; Mineral buildup; Mist outlet blocked. | Refill water tank; Clean the unit as per maintenance instructions; Ensure mist outlet is clear. |
| Unit does not power on | Not plugged in; Power adapter faulty; Unit malfunction. | Check power connection; Try a different USB power adapter; Contact customer support if issue persists. |
| Unusual noise | Unit not on a flat surface; Water tank not properly seated; Foreign object inside. | Place on a flat surface; Re-seat water tank; Unplug and check for foreign objects. |
| Water leakage | Overfilled water tank; Unit tilted; Damaged tank. | Do not overfill; Ensure unit is upright; Inspect tank for cracks. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | HOL-507ERT |
| Brand | Generic |
| Color | Green |
| Dimensions | 12 x 11.99 x 23 cm (approx. 4.7 x 4.7 x 9.1 inches) |
| Weight | 470 g (approx. 1.04 lbs) |
| Power Input | 5V / 5W (USB Type-C) |
| Water Tank Capacity | 800 ml |
| Humidification Capacity | ≤380 ml/h |
| Mist Output | 100-150 ml/h |
| Noise Level | <36 dB |
| Special Features | Automatic Shut-off, Digital Display, Silent Operation, Atomization Technology, Anti-gravity Design |
| Recommended Room Area | Up to 30 square meters |

Image: Product dimensions diagram.
Warranty and Support
This product comes with a standard manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation provided at the time of purchase or contact your retailer. If you encounter any issues or have questions regarding your FYDTOP Anti-Gravity Water Drop USB Humidifier, please contact the seller or manufacturer's customer support for assistance.
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