Waterpik Water Flosser

Introduction

Thank you for choosing the Waterpik Water Flosser WF-21. This device is designed to provide an effective and easy way to improve your oral hygiene. By using a unique pulse jet water flow, it helps remove plaque and food debris from between teeth and below the gumline, areas that traditional brushing and flossing may miss. Regular use can significantly contribute to healthier gums and a cleaner mouth.

Figure 1: Waterpik Water Flosser WF-21 and its packaging, showcasing the device and included tips.

Figure 2: Waterpik brand image emphasizing the shift from traditional brushing to Waterpik for superior oral care.

Important Safety Information

Please read all instructions carefully before using this product. Keep this manual for future reference.

• Do not immerse the unit in water. The unit is waterproof for shower use but not for full submersion.
• Do not direct water under the tongue, into the ear, nose, or other delicate areas. This product is designed for oral use only.
• Supervise children and individuals with special needs during use.
• Use only as directed in this manual.
• If the power cord or plug is damaged, do not use the device. Contact customer support for assistance.
• Do not use with essential oils or abrasive cleaning solutions.

Parts and Components

Your Waterpik Water Flosser WF-21 comes with the following components:

• Water Flosser Main Unit
• Jet Tips (2 included)
• USB-C Charging Cable

Additional tips are available separately for specialized care:

• Pik Pocket Tip: Designed for deep cleaning of periodontal pockets.
• Plaque Seeker Tip: Ideal for implants, crowns, bridges, and veneers.
• Orthodontic Tip: Specifically designed for cleaning around braces and orthodontic appliances.
• Tongue Cleaner Tip: Helps remove bacteria and sulfur compounds from the tongue for fresh breath.
• Toothbrush Tip: Combines brushing and water flossing.
• Implant/Denture Tip: For cleaning around implants and dentures.

Figure 3: Illustration of various Waterpik nozzle types, each designed for specific oral care requirements.

Setup

1. Charging the Unit: Before first use, fully charge the unit for approximately 4 hours. Connect the USB-C charging cable to the port on the device and plug the other end into a compatible USB power adapter (not included). The charging indicator light will show the charging status. A full charge provides approximately 1 month of typical use.


Figure 4: The Waterpik WF-21 unit highlighting its USB-C charging port and waterproof design, suitable for use in the bathroom.

2. Filling the Reservoir: Open the reservoir cap and fill the reservoir with lukewarm water. You may also add a small amount of mouthwash if desired. Close the cap securely.
3. Attaching a Tip: Insert the desired tip into the center of the handle until it clicks into place. To remove a tip, press the tip eject button on the side of the handle and pull the tip out.

Operating Instructions

1. Power On/Off: Press the power button to turn the unit on. Press it again to turn it off.
2. Adjusting Pressure: The WF-21 offers two pressure settings. Use the slide switch on the handle to select your preferred pressure level. Start with the lower setting and gradually increase as you become accustomed to the water flosser.
3. Proper Technique: Lean over a sink and place the tip in your mouth. Close your lips enough to prevent splashing while still allowing water to flow from your mouth into the sink. Aim the tip at the gumline at a 90-degree angle. Move the tip along the gumline, pausing briefly between teeth.

Figure 5: Visual representation of how the Waterpik water flosser effectively cleans hard-to-reach areas, removing plaque and debris.
4. Flossing Duration: Continue until you have cleaned all areas of your mouth. A full reservoir typically provides enough water for a complete cleaning session.

Maintenance and Cleaning

Regular cleaning ensures optimal performance and longevity of your Waterpik Water Flosser.

• Cleaning the Unit: After each use, empty any remaining water from the reservoir. Wipe the exterior of the unit with a soft, damp cloth. Do not use abrasive cleaners or harsh chemicals.
• Cleaning the Tips: Tips can be cleaned by rinsing them under warm water. For a deeper clean, tips can be placed in a container of white vinegar or a denture cleaning solution for 5-7 minutes. Rinse thoroughly afterwards.
• Storage: Store the unit in a dry place away from direct sunlight. Ensure the reservoir is empty before storing for extended periods.

Troubleshooting

Specifications

• Model: WF-21
• Dimensions (Package): 23.3 x 12.8 x 7.2 cm
• Weight (Package): 440 g
• Color: White
• Power Source: Battery operated (USB-C rechargeable)
• Features: Multiple modes, Waterproof design
• Manufacturer Reference: WP-WF-21
• Country of Origin: China

Warranty and Support

Waterpik offers a 1-year exchange guarantee for this product, covering defects or initial malfunctions, missing accessories, and damage not caused by customer intent. Please ensure you purchase from an authorized Waterpik retailer to be eligible for warranty and support services.

Figure 6: Official Waterpik warranty information, detailing the 1-year exchange guarantee and conditions.

For product support, warranty claims, or inquiries, please contact Waterpik customer service through the official Amazon store or the contact information provided with your purchase. Products purchased from unauthorized sellers may not be covered under warranty.

Waterpik is the world's No.1 brand, recommended by dental professionals. The brand has a history of over half a century, originating in the USA, a leading country in dental care. Waterpik obtained the first patent as an oral irrigator and water flosser, and its high effectiveness has made it the most chosen brand worldwide.

Figure 7: Waterpik's recognition, including the ADA Accepted seal and its status as the world's No.1 brand in jet washers.