The Longfian JAY-1000P is a lightweight portable oxygen concentrator designed to provide reliable oxygen therapy at home, outdoors, or during travel. It delivers 93% ± 3% oxygen purity using pulse-dose technology with adjustable flow settings (1–5 levels), offering oxygen support equivalent to up to 5 L/min continuous flow. Its compact design, built-in rechargeable battery, and quiet operation make it ideal for active users who need convenient and mobile respiratory support throughout the day.