Speed: 1. Prepare the oral irrigator by attaching the tip and filling the water tank. 2. Adjust the water pressure to a comfortable setting. 3. Place the tip in your mouth and maneuver it around your teeth and gums to remove plaque and debris. 4. After use, clean the tip and water tank using the included cleaning brush and pry tools to remove any remaining residue. 5. Store the oral irrigator in a dry place to prevent bacterial growth.
Speed: Fill the 300ml tank with water, attach the nozzle securely, and charge the battery. Use one of the 4 modes for water pressure and place the irrigator tip at a 90-degree angle against teeth and gums, starting with the lowest setting. After use, rinse the unit with water, let it dry, and ensure the nozzle covers the sealing rubber ring to prevent water leakage.