The EasyPulse Portable Oxygen Concentrator (POC3) has the highest oxygen purity coupled with a 5 year warranty on the sieve beds * CMV technology used in the EasyPulse5 Oxygen Conserver the largest selling O2 conserver on the market. CMV technology delivers therapeutic oxygen to the patient in the first 1/3 of the inspiratory phase for maximum efficiency. * Simply turn the dial to the desired flow and start to use. No confusing electronic controls or multiple buttons to operate the unit easily.* The EasyPulse POC-3 has a battery duration of 11 hours which allows the patient to be mobile with the confidence that their oxygen needs will be met at home as well as when traveling * With a footprint of only 8.5 height x 4.5 depth x 6.5 width. The EasyPulse POC-3 is the smallest unit on the market. * All the features above are provided in a POC weighing 4.9 lbs * HCPCS Code: E1390 E1392 E1356 E1358 E1399 A4615 * Precision Medical Inc. warrants that the Portable Oxygen Concentrator POC (the Product) will be free of defects in workmanship and/or material for the following period: Portable Oxygen Concentrator five (5) years from date of shipment * Battery 1 year from date of shipment Contents: EasyPulse POC concentrator Internal lithium-ion battery Wall charger Car charger Comfortable carry bag with fully adjustable padded shoulder strap