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<p><span style="font-size: 16px;">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.&nbsp;<strong>All returns must be authorized by a Customer Service Representative and require a Return Merchandise Authorization (RMA) form. For more information, read our&nbsp;<a tabindex="-1" href="https://www.oxygenconcentratorsupplies.com/returns-and-refund-policy">return policy.</a></strong></span></p>