The DeVilbiss 525KS 5L breathable generator supplies a reliable stream of medical oxygen for patient use . This machine is especially intended for people requiring a low rate of up to 5 L per m. https://devilbiss-525ks-5l-oxyge970445.tusblogos.com/42493910/devilbiss-525ks-5l-oxygen-concentrator-a-comprehensive-review