The PillowsPlus Nasal Cannula (PPNC) is engineered to extend the practical range of portable oxygen concentrators while improving comfort and compliance for long-term oxygen therapy patients. Its adaptable interface design is built to fit a wider range of patients and use cases, helping respiratory therapists reduce fitting friction and support better adherence outside the clinic. For POC manufacturers, PPNC offers a proven interface that pairs with existing devices to extend their effective delivery range without redesigning the concentrator itself.