1. Introduction
Thank you for choosing the OILSAO Electric Toothbrush with Water Flosser Combo. This device is designed to provide comprehensive oral care by combining the benefits of an electric toothbrush and a water flosser in one convenient unit. Regular use helps reduce plaque, improve gum health, and maintain a clean mouth. Please read this manual thoroughly before first use to ensure proper operation and maintenance.
2. Safety Information
Do not use for purposes other than oral hygiene. Keep out of reach of children to avoid choking hazards. Do not immerse the device in water beyond its rated waterproof level.
3. Package Contents
- OILSAO Electric Toothbrush Handle
- Water Flosser Base with 500ML Water Tank
- 3 Replacement Toothbrush Heads with Protective Covers
- Charging Base
- AC Adapter
- Instruction Manual
4. Product Overview
The OILSAO Electric Toothbrush with Water Flosser Combo integrates brushing and flossing functions into a single device, offering a streamlined approach to daily oral hygiene.

Figure 1: Complete OILSAO Electric Toothbrush and Water Flosser Combo Unit.

Figure 2: Illustration of the three primary modes: electric brushing, water flossing, and combined brush-floss action.

Figure 3: Comparison highlighting the space-saving 2-in-1 design against traditional separate brushing and flossing units.
Video 1: An overview of the OILSAO Electric Toothbrush with Water Flosser, demonstrating its features and benefits for oral health.
5. Setup
- Unpacking: Carefully remove all components from the packaging.
- Charging: Connect the AC adapter to the charging base and plug it into a power outlet. Place the toothbrush handle onto the charging base. The battery indicator lights will illuminate to show charging status. A full charge typically takes several hours.
- Attaching Brush Head: Align a replacement toothbrush head with the metal shaft on the toothbrush handle and push it down until it clicks into place.
- Filling Water Tank: Remove the water tank from the base. Fill it with lukewarm water. Ensure the tank is securely reattached to the base.

Figure 4: The wireless charging feature for the toothbrush handle and the large 500ml water tank capacity.
Video 2: A detailed demonstration of setting up and using the 2-in-1 oral clean kit, including filling the water tank and attaching brush heads.
6. Operating Instructions
The device offers both brushing and flossing functions, which can be used independently or simultaneously.
6.1. Brushing Modes
The electric toothbrush features 5 distinct brushing modes:
- Clean: For daily cleaning, effectively removes plaque.
- White: Helps whiten teeth by removing surface stains with 40,000 vibrations per minute.
- Polish: Polishes tooth enamel for a smoother surface.
- Sensitive: Gentle cleaning for sensitive teeth and gums.
- Massage: Provides gum massage to boost circulation.
6.2. Flossing Speeds
The water flosser offers 3 adjustable speeds:
- Low: Recommended for first-time users and individuals with sensitive teeth.
- Medium: For deep cleaning between teeth.
- High: High-frequency pulse with strong water pressure for deep cleaning.
6.3. Combined Use
To use both functions simultaneously, select your desired brushing mode and flossing speed. The device is designed to deliver water through the brush head, allowing for brushing and flossing at the same time. This combined action is up to 3 times as effective as traditional brushing and flossing for reducing plaque and improving gum health.

Figure 5: Visual representation of the available brushing modes and flossing speeds on the device.

Figure 6: Depiction of the 40,000 VPM maximum vibrations and 100 PSI maximum water pressure for effective cleaning and gum health improvement.
Video 3: A professional demonstration of the OILSAO Electric Toothbrush with Water Flosser in action, showcasing its cleaning capabilities.
7. Maintenance and Cleaning
Regular cleaning ensures optimal performance and hygiene of your device.
- Brush Head Replacement: It is recommended to replace toothbrush heads every 3 months, or sooner if bristles become frayed. Replacement brush heads can be purchased by searching for B0F38DQN2W.
- Water Tank Cleaning: The 500ML water tank is removable for easy filling and cleaning. Rinse the tank thoroughly after each use to prevent residue buildup.
- Device Cleaning: Wipe the toothbrush handle and base with a damp cloth. The device is IPX7 waterproof, allowing for safe use in the shower, but avoid prolonged submersion.

Figure 7: The detachable design of the toothbrush handle from the water hose, facilitating portability for travel.
8. Troubleshooting
- Device Not Turning On: Ensure the device is fully charged. Check if the power button is pressed firmly.
- Weak Water Pressure: Verify the water tank is adequately filled. Check for any blockages in the flosser tip or internal tubing. Ensure the selected flossing speed is appropriate.
- Brush Head Not Vibrating: Ensure the brush head is securely attached to the handle. If the issue persists, try a different brush head.
- Water Leakage: Confirm that the water tank is correctly seated and sealed. Check if the flosser tip is properly inserted.
9. Specifications
| Feature | Specification |
|---|---|
| Product Dimensions | 8.87 x 5.94 x 5.87 inches |
| Weight | 1.83 Pounds |
| Model Number | ABB869 |
| Battery Type | 1 Lithium Ion battery (included) |
| Water Tank Capacity | 500ML / 16.91 Fl Oz |
| Waterproof Rating | IPX7 |
| Brush Modes | Clean, White, Polish, Sensitive, Massage |
| Flossing Speeds | Low, Medium, High |
| Special Features | Brushing Timer, Multiple Pressure Settings, Multiple Operation Modes, Rechargeable, Battery Indicator |
| Item Firmness | Soft |
10. Warranty and Support
OILSAO is dedicated to providing high-quality oral care solutions. We offer a 12-month protection period on your purchase. For any questions, concerns, or support needs regarding your Electric Toothbrush with Water Flosser, please contact our customer service team. Refer to the contact information provided with your product packaging for assistance.
