Main Characteristics you shall pay attention to: 1. Unique inner air supply system guarantees the security and stability of air output. 2. Air output adjustments system accurately controls the output flow and pressure of liquid for different treatment parts. 3. Air switch easily transfers air supply from air compressor or medical oxygen tank. 4. The inner air compressor can offer 0-10kg air output pressure to meet the need of treatment. 5. Being natural, healthy and fresh, Oxygen & H2O Jet treatment replenishes the skin with oxygen and nutrients and gives you a clean and tender skin. 6. Can put 4 different Nutrient admixtures together at the same time so that to achieve multi-function in a treatment time.