It was initially reported a ventilator's batteries were depleting.There was also an allegation the device's settings changed on their own.The ventilator was returned to the manufacturer for evaluation and the customer's complaints could not be confirmed or duplicated.The device performed to manufacturer's specifications.The ventilator's downloaded event logs were reviewed by the manufacturer.The device maintains the event logs in non-volatile memory.An event, as logged by the device, includes every keypress, alarm or failure of the device to remain within specifications.There were no events logged related to device performance or device malfunctions.If a device malfunction occurred, the event logs would have contained entries related to the malfunction.The logs confirm that only manual settings changes had occurred.
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