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The Inogen One G5 is a Pulse Dose Oxygen Concentrator. Pulse dose concentrators deliver oxygen on inhalation. It is not a continuous flow. Pulse Dose is ideal for treating respiratory conditions that do not require a high LPM (liters of oxygen delivered per minute). If you are unsure if Pulse Dose is appropriate for you, please call our knowledgeable staff at 888-941-1688

Oxygen concentrators can only be returned within 7 days of the original ship date and with less than 10 hours of use. A 15% return processing fee will be taken from the original payment before a credit is issued. All returns must be authorized by a Customer Service Representative and require a Return Merchandise Authorization (RMA) form. For more information, read our return policy.