Important Safety Instructions
When using electrical appliances, basic safety precautions should always be followed to reduce the risk of fire, electric shock, and injury to persons, including the following:
- Read all instructions before using the humidifier.
- Always place the humidifier on a firm, flat, water-resistant surface at least 12 inches (30 cm) away from walls and appliances.
- Do not operate the humidifier if the cord or plug is damaged, or if the appliance malfunctions or has been dropped or damaged in any manner.
- Unplug the humidifier from the power outlet before filling, cleaning, or moving it.
- Do not immerse the humidifier base in water or other liquids.
- Keep the humidifier out of reach of children and pets.
- Do not add essential oils or other additives directly into the water tank or base, as this may damage the unit and void the warranty.
- Use only clean, cool tap water. Distilled water is recommended to prevent mineral buildup.
- Do not block the mist outlet or air intake vents.
- Always ensure the water tank is securely placed on the base before operating.
Product Overview
The Ovente HMD625BL Ultrasonic Cool Mist Humidifier is designed to provide a comfortable humidity level in your home or office. It features a 2.5-liter water tank, adjustable moisture output, and a quiet operation.

Figure 1: Ovente HMD625BL Humidifier with key features highlighted.
Key Features:
- Adjustable Moisture Control: Easily set your desired mist output.
- 2.5 Liter Refillable Tank: Provides sufficient moisture for large rooms.
- Easy-to-See LED Light: Indicates when the unit is operating.
- Efficient 20-Watt Motor: Operates for hours with low power consumption.
- Cool Mist Outlet: Produces a fine, cool mist.

Figure 2: Adjustable moisture control knob.

Figure 3: Easy-to-see LED light indicator.

Figure 4: Cool mist outlet producing mist.
Setup Instructions
- Unpack: Carefully remove the humidifier from its packaging. Retain packaging for future storage or transport.
- Placement: Place the humidifier on a firm, flat, water-resistant surface. Ensure it is at least 12 inches (30 cm) away from walls, furniture, and other appliances to allow for proper mist dispersion.
- Fill Water Tank:
- Turn the control knob to the "min" or "off" position.
- Unplug the humidifier from the power outlet.
- Carefully remove the water tank from the base.
- Unscrew the cap at the bottom of the tank.
- Fill the tank with clean, cool tap water. Distilled water is recommended to minimize mineral buildup. Do not fill past the MAX line.
- Securely screw the cap back onto the tank.
- Place the filled water tank back onto the humidifier base, ensuring it is seated correctly.

Figure 5: The 2.5-liter refillable water tank.
Video 1: Demonstrates how to fill the Ovente HMD625BL Humidifier water tank. This video shows the process of removing the tank, unscrewing the cap, filling with water, and replacing the tank.
Operating Instructions
- Power On: Plug the humidifier into a standard 120V AC electrical outlet. The LED light will illuminate, indicating the unit is powered.
- Adjust Mist Output: Turn the control knob clockwise from the "min" position to your desired mist level. The mist will begin to emerge from the cool mist outlet within one to two minutes.
- Power Off: To turn off the humidifier, rotate the control knob counter-clockwise to the "min" or "off" position and unplug the unit from the power outlet.
Maintenance and Cleaning
Regular cleaning is essential to prevent mineral buildup, bacteria, and mold growth, ensuring optimal performance and healthy mist output.
- Preparation: Always turn off the humidifier and unplug it from the power outlet before cleaning.
- Empty Tank: Remove the water tank from the base and pour out any remaining water.
- Clean Tank: Apply a cleaning solution (e.g., a mixture of white vinegar and water) into the tank. Use a soft brush to clean the inside of the tank thoroughly. Rinse the tank with clear water until all cleaning solution is removed.
- Clean Base: Wipe the inside of the humidifier base with a soft, dry cloth. Do not immerse the base in water.
- Drying: Allow all parts to air dry completely before reassembling or storing the humidifier.
- Storage: When not in use, ensure the humidifier is clean and dry before storing it in a cool, dry place.

Figure 6: Humidifier disassembled for cleaning.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or low mist output |
|
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| Water leaking from base |
|
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| Unusual odor |
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Specifications
- Brand: OVENTE
- Model Name: HMD625BL
- Operation Mode: Ultrasonic
- Capacity: 2.5 Liters
- Voltage: 120 Volts
- Wattage: 20 Watts
- Product Dimensions: 7"D x 7"W x 11.5"H
- Item Weight: 2.51 pounds
- Special Feature: Adjustable Humidity Control
- Room Type: Bedroom, Kids Room, Living Room, Nursery, Office

Figure 7: Product dimensions.
Warranty and Support
For warranty information and customer support, please refer to the warranty card included with your product packaging or visit the official OVENTE website. You may also contact OVENTE customer service directly for assistance with your HMD625BL humidifier.
OVENTE Website: Visit the OVENTE Store on Amazon