Inogen One G3 Portable Oxygen Concentrator (16 cell) Shoulder Bag The EasyGoVac battery powered aspirator combines Seat Type:Single Actuator System with Ultra Low Max The EasyGoVac battery powered aspirator combines ease of use with powerful suction to create a portable unit that is ideal for hospitals Rotating barrel with dual wall nasal pillows: The Swift LT is the only nasal pillows product on the market that features both dual wall pillows and patented rotating barrel Setting of 6: 1 hour with the single and 2 hours 45 minutes with the double battery And the Inogen G3 can be powered for up to 9 hours by its lithium ion battery power pack