3B Medical Siesta Full Face CPAP Mask Size:Medium 4 hours in continuous mode

4 hours in continuous mode Battery Charge Time About 3 hours Noise Level 40 dBa at setting 3 in Pulse Mode AC Input Range 100 to 240 VAC

So if you place one order

Inogen One G3 Rechargeable Lithium Ion Cell Battery will power the Inogen One G3 Portable Oxygen Concentrator System without connection to an external power source

The oxygen purity sensor is standard with every unit

Product Features Battery Time: 1 to 5 hours depending on settings

3B Medical Siesta Full Face CPAP Mask Size:Medium 4 hours in continuous mode3B Medical Siesta Full Face CPAP Mask The 3B Medical Siesta Full Face Mask eliminates forehead support and uses rounded corners for better visibility lines. With an open line of sight and simple design, the Siesta offers you the premium features you're looking for at prices anyone can afford. Freedom of movement, unobstructed vision and an all new self adjusting cushion. The new 3B Siesta full face mask is a modern twist with classic comfort. Modern