FEATURES: 1. 32% concentration rich oxygen supply; this data is medically well known to be the healthiest to human. 2. Compact structure, no need to rearrange the room around it. 3. Lightweight, small and easy to move, this is the perfect home and automotive concentrator, .and you can take it wherever you want. 4. Elegant styled design, good looks make it very popular with most people. 5. Easy operation control panel, it is very easy to use and no need to learn how to operate several devices 6. Free from risk, healthy and nanotechnology is used for the components to protect you from the bacterial injection and other contamination. 7. High-Tech clean system, which added mega anion to 3-step clean system, the same class as the air cleaner, provides high-purity oxygen air more cleanly.