Atmospheric air consists of 21% oxygen, 78% nitrogen and 0.9% argon. Anyoxy®, which is specialized by ASPE and exported to the global market, uses VPSA (Vacuum Pressure Swing Adsorption) to separate oxygen, and ZMS (Zeolite Molecular Sieve) is used to separate oxygen. This adsorbent is a product that the system is perfectly designed and produced so that it can be used semi-permanently.