Buoy Type CGA540 Oxygen Pressure Regulator O2 Pressure Reducer Gauge Flow Meter for Oxygen Inhaler Gas Regulator CGA-540 Features: 1.Main function is supporting oxygen supply system in center for emergency use. 2.It adopts precision cutting to ensure the accuracy and tolerance of each part,equipped with oxygen meter accessories,which is convenient and practical. 3.Fine workmanship and quality assurance,not easy to rust or fade,long service life. 4.The gas is specially filtered and humidified to basically eliminate impure substances in oxygen,making oxygen more comfortable and safe. 5.Oxygen inhaler decompresses the high-pressure gas in a steel cylinder into a low-pressure oxygen through a spring piston for human breathing. 6.With complete accessories and easy to use,user-friendly design,non-toxic and odorless. Specification: Product name: Buoy type.oxygen inhaler Input pressure: