Important Safety Information
Please read all instructions carefully before using the OILSAO AOW11 Cordless Water Flosser. Keep this manual for future reference.
- CAUTION: Keep out of reach of children. Always supervise children when using the product.
- Do not use for purposes other than oral hygiene.
- Do not submerge the toothbrush in water while charging.
- Ensure the charging port cover is securely closed before exposing the device to water.
- Use only with water or dentist-recommended mouthwash.
Product Overview
The OILSAO AOW11 Cordless Water Flosser is designed for comprehensive oral cleaning, offering a unique U-shaped flossing head and multiple modes for personalized dental care. Its portable and waterproof design makes it ideal for home and travel use.

Image: The OILSAO AOW11 Cordless Water Flosser, showcasing its sleek design and the innovative U-shaped flossing tip.
Key Features:
- U-Shaped Flossing Head: Cleans both front and back sides of teeth simultaneously for a 360° deep clean.
- 350ML Ultra-Large Water Tank: Provides 120 seconds of continuous flossing, reducing the need for frequent refills.
- IPX7 Waterproof: Safe for use in the shower or bath.
- 5 Flossing Modes & 10 Pressure Levels: Customizable settings for various oral care needs, including Strong, Normal, Soft, Pulse, and Child modes.
- 9 Jet Tips Included: A variety of tips for different cleaning requirements, such as standard, orthodontic, periodontal, and tongue cleaner.
- Portable & Rechargeable: Long-lasting battery life (up to 30 days) and compact design for travel convenience.
Package Contents
Verify that all items are present in your package:
- 1 x OILSAO AOW11 Water Flosser Unit
- 2 x U-Shaped Flossing Heads
- 2 x Flossing Toothbrush Heads
- 2 x Standard Jet Tips
- 1 x Orthodontic Tip
- 1 x Periodontal Tip
- 1 x Tongue Cleaner
- 1 x USB-C Charging Cable
- 1 x User Manual

Image: The complete set of 9 interchangeable jet tips and the main water flosser unit.
Setup and First Use
1. Charging the Device
- Open the silicone cover at the bottom of the device to reveal the USB-C charging port.
- Connect the provided USB-C cable to the device and a suitable power source (e.g., USB adapter, computer, power bank).
- The battery indicator lights will illuminate during charging and turn solid when fully charged. A full charge typically takes approximately 4 hours.
- Ensure the silicone cover is firmly closed after charging to maintain waterproof integrity.
2. Filling the Water Tank
- The 350ML water tank can be filled in two ways:
- Method A (Top Fill): Open the small cap on the top of the water tank and pour warm water into the opening.
- Method B (Detachable Tank): Twist the water tank counter-clockwise to detach it from the main unit. Fill the tank directly from the faucet. Reattach by aligning and twisting clockwise until secure.
- Use warm water for a more comfortable experience. Do not use hot water.

Image: Demonstrates how to fill the 350ML water tank, either by opening the top cap or detaching the tank.
Operating Instructions
1. Attaching a Nozzle
- Select the desired jet tip (e.g., U-shaped, standard, orthodontic).
- Insert the tip into the hole at the top of the main unit until it clicks into place.
- To remove, press the release button on the side of the unit and pull the tip out.

Image: A selection of specialized jet tips, including standard, orthodontic, periodontal, and tongue cleaner, designed for different oral care needs.
2. Selecting a Mode and Pressure
- Press the 'MODE' button to cycle through the 5 available flossing modes:
- Strong: For deep cleaning of teeth and braces.
- Normal: For comprehensive and effective cleaning.
- Soft: For daily cleaning and sensitive gums.
- Pulse: For gum massage.
- Child: For gentle dental care.
- Each mode features 10 adjustable pressure settings. The device will remember your last used mode.

Image: Visual representation of the five customizable flossing modes: Strong, Normal, Soft, Pulse, and Child, each tailored for specific dental requirements.
3. Using the Water Flosser
- Lean over a sink and place the jet tip into your mouth.
- Press the 'ON/OFF' button to start the water flow.
- Direct the water stream at a 90-degree angle to your gumline.
- For the U-shaped tip, gently glide it over your teeth, allowing it to clean both front and back surfaces simultaneously.
- For other tips, move the tip along your gumline, pausing briefly between teeth to allow water to clean thoroughly.
- Keep your mouth slightly open to allow water to flow into the sink.
- The device will automatically shut off after 2 minutes.
Video: An official product video demonstrating the OILSAO water flosser in use, highlighting its U-shaped tip and cordless operation.
Maintenance and Care
1. Cleaning the Device
- After each use, empty any remaining water from the tank.
- Rinse the water tank and the main unit with clean water.
- Wipe the exterior of the device with a soft, dry cloth.
- Ensure the charging port is dry before closing its silicone cover.
2. Storage
- Store the water flosser in a cool, dry place away from direct sunlight.
- It is recommended to store the device with the water tank empty to prevent bacterial growth.
3. Replacing Nozzles
- For optimal hygiene and performance, replace jet tips every 3-6 months, or sooner if they show signs of wear.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on | Low battery or no charge. | Charge the device fully. |
| Weak water pressure | Water tank is low or empty; nozzle is clogged; incorrect mode selected. | Refill water tank; clean the nozzle; select a stronger mode. |
| Water leaks from the device | Water tank not properly attached; charging port cover not sealed. | Ensure water tank is securely twisted on; firmly close the charging port cover. |
| Nozzle is difficult to remove | Release button not fully pressed. | Press the nozzle release button firmly before pulling the tip. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | AOW11 |
| Product Dimensions | 3.5 x 3.5 x 9.4 inches |
| Item Weight | 14.89 ounces |
| Water Tank Capacity | 350ML / 12oz |
| Waterproof Rating | IPX7 |
| Power Source | Battery Powered (1 AAA battery included) |
| Operation Modes | 5 (Strong, Normal, Soft, Pulse, Child) |
| Pressure Settings | 10 levels |
| Nozzle Rotation | 360° |
Warranty and Support
OILSAO is committed to providing high-quality products and customer satisfaction. Your OILSAO AOW11 Cordless Water Flosser comes with a standard manufacturer's warranty covering defects in materials and workmanship under normal use.
For any questions, concerns, or support needs, please contact our customer service team. We offer 24/7 customer support to assist you.
- Customer Support Email: dentalclean@oilsaosupport.com

Image: A graphic indicating customer support availability and contact information for OILSAO products.