Oral-B Oxyjet Targeted Micro-Bubble Cleaning Replacement Jets are replacement irrigator heads for Oral-B Irrigators. With Oxygen Technology they have the ability to mix air and water and enrich the water with micro-bubbles. This combination, water and purified air, is designed to help hamper bacteria proliferation, provide a gentle gum massage, and boost the freshness of the breath all at the same time. In combination with the irrigator, it perfectly removes trapped food around both braces and implants, removing more plaque and leaving your whole mouth cleaner being ideal to complement your daily oral hygiene routine.