Invacare Perfecto 2 V Oxygen Concentrator $175.00 every month Invacare Platinum 10 Oxygen Concentrator $175.00 every month AirSep NewLife Elite Oxygen Concentrator $175.00 every month AirSep VisionAire 5 Home Oxygen Concentrator $175.00 every month Philips Respironics EverFlo Oxygen Concentrator $175.00 every month