Please note this item IS NOT eligible for further discounts. One of the keys to SimplyGo’s portability is its lightweight and compact battery. SimplyGo’s battery is immediately accessible and can be easily changed by your patients. There are no awkward external battery belts or connectors that get in the way or hard-to-maintain internal batteries. Philips Respironics SimplyGo is the only portable oxygen concentrator to offer continuous flow and pulse-dose delivery in a single device weighing only 10 pounds. With a long-life compressor, high-quality parts, a high-impact resistant design, and oversized cartwheels, this POC was built to set new standards of ruggedness. During development, Philips Respironics SimplyGo portable oxygen concentrator was rigorously tested and subjected to extreme conditions including impacts, vibrations, and temperatures to deliver reliable performance day in and day out.Oxygen delivery modes: Continuous Flow mode: In Continuous Flow mode, a constant flow of oxygen is supplied based on the setting number (in liters per minute). When the desired mode appears in the display, stop pressing the button and wait. The display will return to the run time screen of the mode you selected, and the device will operate in this mode. Pulse Mode: When Simply Go is in the Pulse mode, it detects when the user begins to take a breath and then delivers a pulsed volume of oxygen during inhalation determined by the setting number. Sleep mode:Sleep mode is similar to the Pulse mode; SimplyGo portable oxygen concentrator detects when the user begins to take a breath and then delivers a pulsed volume of oxygen determined by the setting number. The Sleep mode differs from Pulse mode in that it provides increased sensitivity and a softer pulse for exceptional comfort. If no breath is detected for a period of time, the system automatically delivers a continuous flow of oxygen at a rate consistent with the last used Continuous Flow mode setting.