Important Safety Information
Please read all instructions carefully before using this product. Failure to follow these instructions may result in injury or damage to the product.
- Caution: Not suitable for individuals with cardiovascular diseases.
- Keep the water flosser out of reach of children.
- Do not use the device near water or humidity when it is powered on.
- Do not charge the device on a wet or damp surface.
- Never plug the device into a power outlet when it is wet.
- Consult your dentist before use if you have bleeding gums, periodontitis, or other gum diseases.
Product Components
The Sejoy Cordless Water Flosser comes with various components designed for comprehensive oral care.
Figure 1: Included Nozzles. This image displays the six different nozzles provided with the water flosser. These include three standard nozzles for daily cleaning, one periodontal tip for gum cleaning, one orthodontic tip for cleaning around braces, and one tongue cleaner for removing bacteria and freshening breath.
- Water Flosser Unit: The main device body with controls and water reservoir.
- Standard Nozzles (3x): For general daily cleaning.
- Periodontal Tip (1x): Designed for gum cleaning and reaching deep pockets.
- Orthodontic Tip (1x): Specifically for cleaning around braces and orthodontic appliances.
- Tongue Cleaner (1x): For removing bacteria from the tongue to improve breath freshness.
- USB Charging Cable: For recharging the device's internal battery.
- User Manual: This document.
Note: For hygiene purposes, it is recommended to replace nozzles every 3 months.
Setup Guide
- Charge the Device:
Before first use, fully charge the water flosser. Connect the USB charging cable to the device and a suitable USB power adapter (not included). A full charge takes approximately 4 hours and provides up to 30 days of continuous use (based on 2 minutes per day).
Figure 2: Charging and Water Tank. This image illustrates the USB charging port and the 2000mAh powerful battery, indicating a full charge in 4 hours for up to 30 days of use. It also shows the 300ml large water tank with ml and oz scales, designed for easy filling.
- Fill the Water Reservoir:
Open the water tank and fill it with lukewarm water. The 300ml removable water tank has a large diameter for easy filling and cleaning. Ensure the silicone plug is securely in place after filling to prevent leaks.
- Attach a Nozzle:
Select the desired nozzle (standard, periodontal, orthodontic, or tongue cleaner) and firmly insert it into the nozzle opening at the top of the device until it clicks into place. The nozzle can rotate 360 degrees for easy access to all areas of the mouth.
Operating Instructions
Follow these steps for effective and safe use of your Sejoy Cordless Water Flosser.
- Power On and Select Mode:
Press and hold the Power button to turn on the device. Short press the Mode button to cycle through the available cleaning modes: Soft, Normal, Pulse, and DIY. It is recommended to start with the Soft mode for first-time users or those with sensitive teeth.
Figure 3: Professional Cleaning Modes. This image details the four available modes: Soft mode (25-65 psi) for beginners or sensitive teeth, Normal mode (70-110 psi) for effective cleaning, DIY mode (20-110 psi) for customizable pressure, and Pulse mode (60-110 psi) for gum massage.
- Soft Mode (25-65 psi): Gentle cleaning, suitable for children or beginners.
- Normal Mode (70-110 psi): Effective cleaning for daily use.
- Pulse Mode (60-110 psi): Massages gums and cleans with pulsating water.
- DIY Mode (20-110 psi): Allows free adjustment of water pressure according to your dental needs.
- Using DIY Mode:
To set your preferred pressure in DIY mode:
- Long press the Power button to turn on.
- Short press the Mode button to switch to DIY mode.
- Long press the Mode button for 3 seconds. The DIY indicator light will flash, and the water pressure will cycle from low to high to low. Short press the Mode button again when the water pressure reaches your desired level to set it.
Figure 4: DIY Mode Operation. This diagram explains the process of customizing water pressure in DIY mode, from pressing the power button to setting the desired pressure level between 20 psi and 110 psi.
- Positioning and Flossing:
Lean over a sink and place the nozzle tip in your mouth, aiming the water jet at your gumline at a 90-degree angle. Close your lips slightly to prevent splashing but allow water to flow into the sink. Move the nozzle along your gumline, pausing briefly between teeth. The device has a 120-second auto-timer.
Figure 5: Flossing Technique. This image demonstrates the water flosser in action, showing the water jet effectively cleaning the gumline and between teeth. It highlights the 1400 pulses per minute and the 120-second auto-timer feature.
- After Use:
Turn off the device by long-pressing the Power button. Empty any remaining water from the reservoir and clean the nozzle.
Maintenance and Care
Proper maintenance ensures the longevity and hygiene of your water flosser.
- Cleaning the Nozzle: After each use, rinse the nozzle under running water. You can detach it for thorough cleaning.
- Cleaning the Water Reservoir: The 300ml water tank is removable for easy cleaning. Detach it from the main unit and rinse thoroughly with water. Allow it to air dry before reattaching.
- Cleaning the Main Unit: Wipe the main unit with a soft, damp cloth. Do not immerse the main unit in water. The device is IPX7 waterproof, meaning it can withstand immersion in up to 1 meter of water for 30 minutes, but avoid prolonged submersion and ensure the charging port's silicone plug is sealed.
- Storage: Store the water flosser in a cool, dry place away from direct sunlight when not in use.
- Nozzle Replacement: Replace nozzles every 3 months for optimal hygiene and performance.
Figure 6: IPX7 Waterproof Design. This image demonstrates the water flosser's IPX7 waterproof rating, showing it can be safely used in the bathroom. It also emphasizes the importance of ensuring the silicone plug for the charging port is in place to maintain water resistance.
Troubleshooting Guide
If you encounter any issues with your Sejoy Cordless Water Flosser, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Low battery or not charged. | Charge the device fully (approx. 4 hours). |
| Weak water pressure. | Low battery, clogged nozzle, or insufficient water in reservoir. | Charge the device, clean the nozzle, or refill the water reservoir. Ensure the correct mode is selected (e.g., not Soft mode if higher pressure is desired). |
| Water leaks from the device. | Water reservoir not properly sealed or silicone plug for charging port is open. | Ensure the water reservoir is securely attached and the silicone plug for the charging port is firmly closed. |
| Nozzle is difficult to attach/detach. | Misalignment or debris. | Ensure the nozzle is aligned correctly before inserting. Clean any debris from the nozzle opening. |
If the problem persists after trying these solutions, please contact customer support.
Product Specifications
| Model Number | CYQ-FC5091 |
| Brand | Sejoy |
| Water Tank Volume | 300 ml |
| Pressure Range | 20-110 PSI (depending on mode) |
| Battery Capacity | 2000 mAh Lithium Battery |
| Charging Time | Approx. 4 hours |
| Usage Time (Full Charge) | Up to 30 days (2 minutes/day) |
| Waterproof Rating | IPX7 |
| Pulse Frequency | 1400 times/min |
| Auto Timer | 120 seconds |
| Power Source | Battery Powered (USB Rechargeable) |
| Material | Plastic and Rubber |
| Dimensions (Package) | 24.2 x 8.6 x 7.4 cm |
| Weight (Package) | 400 grams |
Warranty Information
Specific warranty details are not provided in the product description. Please refer to the product packaging or contact the manufacturer directly for warranty terms and conditions.
Customer Support
For further assistance, product inquiries, or technical support, please contact Sejoy customer service through their official website or the contact information provided on the product packaging.