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The manufacturer was contacted in reference to the voluntary field safety notice / recall notification related to the sound abatement foam in certain cpap, bipap, and mechanical ventilator devices.The manufacturer previously reported an allegation of an issue related to a cpap device's sound abatement foam.The manufacturer received information alleged visualization of black particles in water, headache and havey head.There was no report of serious or permanent harm or injury.The device was returned to the manufacturer's service center for further evaluation.The device was evaluated.There was no mention of visual findings to the external part of the device.The internal aspect of the device was inspected.The device powered on and airflow was confirmed.The device's downloaded logs were reviewed by the manufacturer.There was no error found.The manufacturer concludes that they could not confirm the customer's allegation and there was no visible foam degradation and unit scrapped due to model number.Corrected information provided in b5, the information (the manufacturer received information alleged visualization of black particles in water, headache and havey head) was not included in initial report.Corrected information provided in a1 (patient identifier) was not included in initial report.Section updated in this report.
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