Introduction
The MySmile MS202B is a cordless ultrasonic cleaner designed for dental appliances such as retainers, dentures, mouthguards, and aligners. It utilizes high-frequency ultrasonic technology combined with UV light for comprehensive cleaning and odor elimination. Its portable and rechargeable design makes it suitable for use at home, in the office, or while traveling.
Safety Information
- Always use cold water with the device.
- The UV lamps automatically shut off when the lid is opened to protect eyes and skin.
- Do not immerse the entire unit in water beyond its IPX5 waterproof rating for the main body. Ensure the charging port is sealed with the dust plug during use and cleaning.
- Keep out of reach of children.
- Do not attempt to disassemble or repair the device yourself. Contact customer support for assistance.
Note: Product packaging may contain additional safety information. Always read all labels, warnings, and directions before using the product.
Product Overview
Key Features
- Advanced Ultrasonic Cleaning: 48000Hz high-frequency ultrasonic technology for 360-degree deep cleaning.
- UV Sterilization: Four premium UV lamps provide 360-degree sterilization and odor elimination.
- Cordless & Rechargeable: Equipped with a 4000mAh lithium battery, offering over 8 cleaning cycles per full charge.
- Multiple Cleaning Modes: Four customizable modes for varied cleaning needs.
- Portable Design: Compact size (approximately 4.5 inches tall) with a 200ml capacity stainless steel inner tank.
- Waterproof Rating: IPX5 full-body waterproof for easy cleaning.
- USB-C Charging: Convenient charging with a universal USB-C port.
Components
- MySmile MS202B Ultrasonic Cleaner Unit
- Lid with UV lamps
- 304 Stainless Steel Inner Tank
- USB-C Charging Cable
- Metal Tweezer
- Dust-proof Cleaning Cloth
- User Manual

Image: Package contents of the MySmile MS202B cleaner.
Setup
Charging the Device
- Locate the USB-C charging port on the device, usually protected by a dust plug.
- Open the dust plug and connect the provided USB-C cable to the port.
- Connect the other end of the USB-C cable to a compatible USB power adapter (not included) or a USB port.
- The device will indicate charging status (e.g., an indicator light). A full charge provides power for over 8 cleaning cycles.
- Once fully charged, disconnect the cable and securely close the dust plug to maintain the IPX5 waterproof rating.

Image: Internal view of the rechargeable lithium battery.

Image: USB-C charging port and cable.
Operating Instructions
Follow these steps for effective cleaning of your dental appliances:
- Fill with Water: Open the lid and fill the stainless steel inner tank with cold water. Ensure the water level is sufficient to cover your appliance but does not exceed the 'MAX' fill line.
- Place Appliance: Carefully place your retainer, denture, mouthguard, or other dental appliance into the water in the inner tank. Use the provided metal tweezers for hygienic handling if desired.
- Select Mode: Close the lid. Press the power button once to turn on the device. Use the same button to cycle through the four available cleaning modes:
- MODE 1: 300 seconds (5 minutes) Ultrasonic + UV cleaning.
- MODE 2: 600 seconds (10 minutes) Ultrasonic + UV cleaning.
- MODE 3: 600 seconds (10 minutes) UV only cleaning.
- MODE 4: 600 seconds (10 minutes) Ultrasonic only cleaning.
- Start Cleaning: The device will automatically begin the selected cleaning cycle. The timer display will count down.
- Remove Appliance: Once the cycle is complete, the device will turn off. Open the lid and carefully remove your clean appliance using the tweezers. Rinse the appliance under running water before use.

Image: Step 1 - Filling the cleaner with cold water.

Image: Step 2 - Placing the dental appliance into the cleaner.

Image: Control panel with cleaning mode options.

Image: Step 3 - Selecting a cleaning mode.

Image: Step 4 - Removing the cleaned appliance.
Using Cleaning Tablets (Optional)
For an enhanced cleaning experience, especially for stubborn buildup or odors, you may use retainer cleaning tablets in conjunction with the ultrasonic cleaner. Follow the tablet manufacturer's instructions for dosage and placement, ensuring they are compatible with ultrasonic devices.
Maintenance
Cleaning the Unit
- After each use, empty any remaining water from the inner tank.
- Rinse the inner tank with clean water.
- Wipe the inner tank and the exterior of the unit dry with the provided dust-proof cloth.
- Ensure the charging port's dust plug is securely closed to maintain its IPX5 waterproof rating during rinsing.

Image: Rinsing the unit under water, highlighting its IPX5 waterproof design.
Storage
Store the cleaner in a cool, dry place away from direct sunlight when not in use.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on or charge. | Battery is depleted. Charging cable or adapter issue. Device malfunction. | Ensure the device is fully charged using the provided USB-C cable and a working power source. Try a different USB-C cable or power adapter. If the issue persists, contact MySmile customer support. |
| Cleaning results are unsatisfactory. | Insufficient water level. Appliance is heavily soiled. Incorrect cleaning mode selected. | Ensure the appliance is fully submerged in water. Consider using a cleaning tablet with the ultrasonic cycle. Select a longer cleaning mode (e.g., 600s ultrasonic + UV). |
| UV light does not activate. | Lid is not fully closed. UV-only mode not selected. | Ensure the lid is securely closed. The UV lamps have an automatic shut-off safety feature when the lid is open. Select a mode that includes UV cleaning (MODE 1, 2, or 3). |
Specifications
- Model Number: MS-AU
- Ultrasonic Frequency: 48 kHz (48000 Hz)
- UV Lamps: 4 UVC lights
- Battery Capacity: 4000mAh Lithium Ion (included)
- Capacity: 200ml
- Waterproof Rating: IPX5
- Dimensions: Approximately 14.5 x 11.81 x 11.61 cm
- Item Weight: 530 g
- Power Source: Rechargeable via USB-C
- Country of Origin: China
- GTIN: 00850066015919
Warranty and Support
MySmile offers a 12-month warranty for the MS202B Cordless Ultrasonic Retainer Cleaner from the date of purchase. This warranty covers manufacturing defects and issues arising from normal use.
For any usage problems, questions, or warranty claims, please contact MySmile customer support. Our team is available 24/7 to provide responsive assistance.
Contact Information: Refer to the contact details provided in your product packaging or visit the official MySmile website for the most current support information.