Introduction
The Oral-B Aquacare Irrigator 4 is a cordless and rechargeable water flosser designed to enhance your oral hygiene routine. It utilizes Oxyjet Technology, enriching water with microbubbles to provide invigorating gum care and effective cleaning between teeth and around braces. This manual provides essential information for the safe and effective use of your device.
Important Safety Information
- Do not immerse the charging unit in water or other liquid.
- Do not use if the device or charger is damaged.
- Keep out of reach of children. This appliance is not intended for use by children under 8 years old.
- Consult your dentist before use if you have severe gum disease or have undergone oral surgery.
- Use only warm water or dentist-recommended solutions in the water tank.
- Do not direct the water stream directly under the tongue, into the ear, nose, or other delicate areas.
What's in the Box
Your Oral-B Aquacare Irrigator 4 package includes the following components:
- 1 x Oral-B Aquacare Portable Irrigator
- 1 x Oxyjet Nozzle
- 1 x Charging Station

Image: The Oral-B Aquacare Irrigator 4 and its packaging, illustrating the included components.
Setup
- Initial Charge: Before first use, fully charge the device using the provided charging station. Place the irrigator on the charging station and connect the charger to a power outlet. The charging indicator light will show the charging status.
- Fill Water Tank: Open the water tank cap and fill the tank with warm water. You may also use mouthwash as recommended by your dentist. Close the cap securely.

Image: Filling the water tank of the Oral-B Aquacare Irrigator 4.
- Attach Nozzle: Firmly insert the Oxyjet nozzle into the opening at the top of the irrigator handle until it clicks into place.
Operating Instructions
Powering On and Mode Selection
Press the power button to turn on the device. The Oral-B Aquacare Irrigator 4 offers four cleaning modes and two intensity settings to customize your cleaning experience:
- Cleaning Modes: The device features four distinct cleaning modes for comprehensive oral care.
- Intensity Settings: Choose between Regular and Sensitive water pressures to suit your comfort level and specific needs.

Image: Control panel showing intensity settings.

Image: Detail of the sensitive mode setting.
Using the Irrigator
- Positioning: Place the irrigator tip in your mouth, directing the water stream at a 90-degree angle to your gum line.
- Cleaning Technique: Move the tip along the gum line and teeth, pausing briefly at each tooth to allow the water to clean effectively.
- Oxyjet Technology: The device uses Oxyjet Technology, which enriches the water with microbubbles for a powerful yet gentle cleaning action, targeting plaque and food debris.

Image: Proper usage of the Oral-B Aquacare Irrigator 4.

Image: Illustration of Oxyjet Technology in action, showing microbubbles cleaning the gum line.

Image: Illustration of the water flosser cleaning between teeth.

Image: Illustration of the water flosser cleaning around braces.
On-Demand Mode
The device features an on-demand mode, which provides a pulse setting for a precise and targeted clean, allowing you to control the water flow as needed.
Maintenance
- After Each Use: After each use, remove the nozzle and rinse it thoroughly under clean water.
- Empty and Dry: Empty any remaining water from the tank. Allow the device and nozzle to air dry completely with the nozzle detached.
- Storage: Store the device in a dry place, away from direct sunlight and extreme temperatures.
- Cleaning the Unit: Wipe the main unit with a damp cloth. Do not use abrasive cleaners or immerse the unit in water.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Battery is low or depleted. | Place the device on the charging station and ensure it is fully charged. |
| Weak water pressure. | Water tank is low or empty; Nozzle is clogged; Incorrect mode/intensity selected. | Refill the water tank; Clean the nozzle; Select a higher intensity setting. |
| Water leaks from the device. | Water tank cap is not securely closed; Nozzle is not properly attached. | Ensure the water tank cap is tightly closed; Re-attach the nozzle until it clicks. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | 80340868 |
| Product Dimensions | 16.1 x 6.8 x 25.3 cm |
| Item Weight | 684.09 Grams |
| Power Source | Battery Powered |
| Special Features | Cordless, Rechargeable |
| Batteries | 2 AA batteries required (included) |
| Manufacturer | Procter & Gamble ANZ |
Warranty and Support
For warranty information and customer support, please refer to the warranty card included with your product or visit the official Oral-B website. Keep your purchase receipt as proof of purchase for any warranty claims.
