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The manufacturer received information alleging a ventilator was alarming related to a low oxygen flow condition.There was no harm or injury reported.The ventilator was returned to the manufacturer's service center for evaluation and the customer's complaint was confirmed.During evaluation, a "service required" code was found in the ventilator's downloaded error log and the device failed a test step due to contaminated from a foreign substance.The device's oxygen blending module board and oxygen blending module flow element were replaced to address the issues.
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