If you want an effective, low-cost alternative to bottled oxygen, OGSI's mid-size industrial line is the solution. Use it for applications that call for outputs from 25-100 SCFH (0.6 to 2.0 Nm3/h). OGSI has the most energy efficient plants in today's market. You can directly remove oxygen from the atmosphere and provide it to industrial or medical applications that use OGSI oxygen generators. OGSI's mid-size Pressure Swing Adsorption generators are capable of delivering up to 93% (± 3%) constant flow of oxygen purity at 45-60 psi. Also available as an option are higher pressure and oxygen purity. OGSI tests every PLC-controlled generator assembled at their facility to ensure quality and dependability. There are solid tanks in which the zeolite sieve is factory-sealed so it rarely needs replaced, and the generators provide thousands of continuous hours of service because they don't have many moving parts. Routine maintenance is all that's needed.