Philips Respironics 

EverFlo from Respironics is a unique stationary concentrator that delivers what homecare providers want and patients deserve. The EverFlo Oxygen concentrator weighs in at only 31 pounds, reducing shipping and storage costs and risk of injury. EverFlo’s ergonomic design takes up less space and doesn’t draw as much attention. See if you qualify to get a new oxygen system >

Say Goodbye to tanks

Live the life you want with a portable oxygen concentrator
Simple-to-carry around your home, anytime at only 31 pounds
Simple-to replace/remove rechargeable battery
Simple-to-use interface panel
Size 58.4 cm x 38.1 cm x 24.1 cm (with battery installed)
Weight 31 lbs. (14 kg) with battery installed
User interface Interface panel
Operating temperature 155°F to 90°F
Sound level 45 dB
Oxygen concentration 93 +/- 3 % (at 5 LPM)

Meets FAA requirement for travel
Altitude: Up to 7,500 ft. (2,286 m)