The higher the outlet strain, the longer the space the oxygen compressor can adequately thrust oxygen to the affected individual. Position initial for oxygen outlet tension could be the Zen-O at 25 psi. The iGo is 2nd at 15 psi. : to acquit in a way deserving of 1's capabilities https://bestroboticvacuum45441.ka-blogs.com/69543088/not-known-facts-about-mini-portable-smallest-portable-oxygen-concentrator