Instead of using a small oxygen tank while running errands (which reduces your time out) or a larger tank on a cart, the Rhythm P2-S4 delivers your prescribed dosage of medical grade oxygen while weighing just 3.3 lbs. Its feather-like weight makes it an ideal companion for daily activities, exercise, and travel, ensuring you never feel weighed down or restricted by your oxygen needs. Measuring just 3.4” W x 6.2” D x 6.7” H, it's small enough to fit in a carrying bag yet powerful enough to meet your pulse flow oxygen needs efficiently.

Equipped with a High Absorption Sieve Bed, the Rhythm P2-S4 ensures you receive oxygen of the highest purity, maximizing oxygen concentration effectively and reliably. The compressor operates quietly, ensuring minimal disturbance especially at night while offering high efficiency and excellent heat dissipation for longevity. The control panel features a bright 2.0” LCD display with breath detection light, alert light, fault light, mute/audio button, flow up/down controls, on/off, and battery level indicator—simple control functions mean you can adjust settings effortlessly without technical complexities.

The P2-S4 offers single, double, or triple battery options. Single battery lasts up to 2.5 hours, double up to 4.8 hours, and triple up to 7.2 hours on setting 1. Detailed battery life: Setting 1 (Single 2.5h / Double 4.8h / Triple 7.2h), Setting 2 (1.7h / 3.5h / 5h), Setting 3 (1.2h / 2.5h / 3.5h), Setting 4 (1h / 2h / 3h). Charge via AC power supply (home wall outlet), DC power supply (vehicle cigarette lighter), or optional external battery charger (charge spare batteries without connecting the unit). Switching batteries is easy—slide into place until you hear an audible click. The screen displays battery life in a big bold image.